ZL50075
32 K Channel Digital Switch with High Jitter
Tolerance, Rate Conversion per Group of
2 Streams (8, 16, 32 or 64 Mbps),
and 64 Inputs and 64 Outputs
Data Sheet
Features
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32,768 channel x 32,768 channel non-blocking
digital Time Division Multiplex (TDM) switch at
65.536 Mbps or 32.768 Mbps or using a
combination of rates
16,384 channel x 16,384 channel non-blocking
digital TDM switch at 16.384 Mbps
8,192 channel x 8,192 channel non-blocking
digital TDM switch at 8.192 Mbps
High jitter tolerance with multiple input clock
sources and frequencies
Up to 64 serial TDM input streams, divided into
32 groups with 2 input streams per group
Up to 64 serial TDM output streams, divided into
32 groups with 2 output streams per group
Per-group input and output data rate conversion
selection at 65.536 Mbps, 32.768 Mbps,
16.384 Mbps and 8.192 Mbps. Input and output
data group rates can differ
Per-group input bit delay for flexible sampling
point selection
Per-group output fractional bit advancement
Two sets of output timing signals for interfacing
additional devices
VDD_CORE
VDD_IO
VSS
January 2006
Ordering Information
ZL50075GAC
324 Ball PBGA
Trays
ZL50075GAG2 324 Ball PBGA** Trays
**Pb Free Tin/Silver/Copper
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-40°C to +85°C
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Per-channel A-Law/µ-Law Translation
Per-channel constant or variable throughput delay
for frame integrity and low latency applications
Per-stream Bit Error Rate (BER) test circuits
Per-channel high impedance output control
Per-channel force high output control
Per-channel message mode
Control interface compatible with Intel and
Motorola 16 bit non-multiplexed buses
Connection memory block programming
Supports ST-BUS and GCI-Bus standards for
input and output timing
IEEE 1149.1 (JTAG) test port
3.3 V I/O with 5V tolerant inputs; 1.8 V core
voltage
ODE
PWR
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Input
Group 0
STiA0
STiB0
Output
Group 0
Data Memory
S/P
Converter
Connection Memory
P/S
Converter
SToA0
SToB0
Input
Group 31
:
:
STiA31
STiB31
:
:
SToA31
SToB31
Output
Timing
Output
Group 31
Input
Timing
FPi0
CKi0
CK_SEL1-0
FPo1-0
CKo1-0
Timing
Microprocessor Interface
and Control Registers
Test Access
Port
IM
DS
CS
R/W
SIZ1-0
A18-0
DTA
WAIT
BERR
D15-0
TMS
TDi
TDo
TCK
Figure 1 - ZL50075 Functional Block Diagram
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Zarlink Semiconductor Inc.
Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.
Copyright 2004-2006, Zarlink Semiconductor Inc. All Rights Reserved.
TRST
ZL50075
Applications
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Large Switching Platforms
Central Office Switches
Wireless Base Stations
Multi-service Access Platforms
Media Gateways
Data Sheet
Description
The ZL50075 is a non-blocking Time Division Multiplex (TDM) switch with maximum 32,768 x 32,768 channels. The
device can switch 64 kbps and Nx64 kbps TDM channels from any input stream to any output stream. With a
number of enhanced features, the ZL50075 is designed for high capacity voice and data switching applications.
The ZL50075 has 64 input and 64 output data streams which can operate at 8.192 Mbps, 16.384 Mbps,
32.768 Mbps or 65.536 Mbps. The large number of inputs and outputs maintains full 32 K x 32 K channel switching
capacity at bit rates of 65 Mbps and 32 Mbps. Up to 32 input and output data streams may operate at 65 Mbps. Up
to 64 input and output data streams may operate at 32 Mbps, 16 Mbps or 8 Mbps. The data rate can be
independently set in groups of 2 input or output streams. In this way it is possible to provide rate conversion from
input data channel to output data channel.
The ZL50075 uses a master clock (CKi0) and frame pulse (FPi0) to define the TDM data stream frame boundary
and timing. A high speed system clock is derived internally from CKi0 and FPi0. The input and output data streams
can independently reference their timings to the input clock or to the internal system clock.
The ZL50075 has a variety of user configurable options designed to provide flexibility when data streams are
connected to multiple TDM components or circuits. These include:
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Variable input bit delay and output advancement, to accommodate delays and frame offsets of streams
connected through different data paths
Two timing outputs, CKo1 - 0 and FPo1 - 0, which can be configured independently to provide a variety of
clock and frame pulse options
Support of both ST-BUS and GCI-Bus formats
The ZL50075 also has a number of value added features for voice and data applications:
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Per-channel variable delay mode for low latency applications and constant delay mode for frame integrity
applications
Per-channel A-Law/µ-Law Conversions for both voice and data
64 separate Pseudo-random Bit Sequence (PRBS) test circuits; one per stream. This provides an integrated Bit
Error Rate (BER) test capability to facilitate data path integrity checking
The ZL50075 has two major modes of operation: Connection Mode (normal) and Message Mode. In Connection
Mode, data bytes received at the TDM inputs are switched to timeslots in the output data streams, with mapping
controlled by the Connection Memories. Using Zarlink's Message Mode capability, microprocessor data can be
broadcast to the output data streams on a per-channel basis. This feature is useful for transferring control and
status information to external circuits or other TDM devices.
A non-multiplexed microprocessor port provides access to the internal Data Memory, Connection Memory and
Control Registers used to program ZL50075 options. The port is configurable to interface with either 16 bit Motorola
or Intel-type microprocessors.
The mandatory requirements of IEEE 1149.1 standard are supported via the dedicated Test Access Port.
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Zarlink Semiconductor Inc.
ZL50075
Table of Contents
Data Sheet
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Change Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.0 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.2 Switch Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.3 Stream Provisioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
1.4 Input and Output Rate Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1.4.1 Per Group Rate Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1.5 Rate Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.0 Input Clock (CKi) and Input Frame Pulse (FPi) Timing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.0 Output Clock (CKo) and Output Frame Pulse (FPo) Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.0 Output Channel Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.0 Data Input Delay and Data Output Advancement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.1 Input Sampling Point Delay Programming. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.2 Fractional Bit Advancement on Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.0 Message Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.1 Data Memory Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.2 Connection Memory Block Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7.0 Data Delay Through the Switching Paths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7.1 Constant Delay Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7.2 Variable Delay Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
8.0 Per-Channel A-Law/m-Law Translation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
9.0 Bit Error Rate Tester . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
10.0 Microprocessor Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
10.1 Bus Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
10.1.1 Read Cycle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
10.1.2 Write Cycle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
11.0 Power-up and Initialization of the ZL50075 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
11.1 Device Reset and Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
11.2 Power Supply Sequencing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
11.3 Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
12.0 IEEE 1149.1 Test Access Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
12.1 Test Access Port (TAP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
12.2 Instruction Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
12.3 Test Data Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
12.4 Boundary Scan Description Language (BSDL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
13.0 Memory Map of ZL50075 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
14.0 Detailed Memory and Register Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
14.1 Connection Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
14.1.1 Connection Memory Bit Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
14.1.2 Connection Memory LSB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
14.2 Data Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
14.3 BER Control Memory and Error Counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
14.3.1 Input BER Enable Control Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
14.3.2 BER Counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
14.4 Group Control Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
14.5 Input Clock Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
14.6 Output Clock Control Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
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Zarlink Semiconductor Inc.
ZL50075
Table of Contents
Data Sheet
14.7 Block Init Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
14.8 Block Init Enable Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
15.0 DC/AC Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
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Zarlink Semiconductor Inc.
ZL50075
List of Figures
Data Sheet
Figure 1 - ZL50075 Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Figure 2 - 32 K x 32 K Channel Basic Switch Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 3 - Input and Output Data Rate Conversion Example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 4 - Input Sampling Point Delay Programming. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 5 - Output Bit Advancement Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 6 - Data Throughput Delay for Constant Delay. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 7 - Data Throughput Delay for Variable Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 8 - Example PRBS Timeslot Insertion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 9 - Read Cycle Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 10 - Write Cycle Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 11 - Frame Pulse Input and Clock Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Figure 12 - ST-Bus Frame Pulse and Clock Output Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Figure 13 - GCI Frame Pulse and Clock Output Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Figure 14 - Serial Data Timing to CKi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Figure 15 - Serial Data Timing to CKo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Figure 16 - Microprocessor Bus Interface Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Figure 17 - Intel Mode Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Figure 18 - IEEE 1149.1 Test Port & PWR Reset Timing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
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