Philips Semiconductors
Objective specification
Low cost; low power DECT baseband
controllers (ABC-PRO)
1
FEATURES
PCD509x2/zuu/v family
•
The PCD50912 is designed for GAP compatible DECT
handsets
•
The PCD50922 is designed for GAP compatible DECT
base stations serving up to six handsets
•
Fully static 80C51 microcontroller
•
Emulation supported for 80C51 program development
•
Four 8-bit ports (P0, P1, P2 and P3), 32 I/O lines
•
Dedicated port pins for keyboard, I
2
C-bus, interrupt
sources and/or external memory
•
Fifteen interrupt sources (including those from TICB,
BML and DSP) with two priority levels
•
I
2
C-bus interface
•
UART with IrDA-compatible Data Transmission Mode
•
256 bytes of microcontroller main RAM
•
3 kbytes of microcontroller AUX RAM
•
1 kbyte of shared System Data RAM
•
64 kbytes of mask programmable ROM
•
128 kbyte address space for external ROM access,
maximum 192 kbytes together with internal ROM
•
128 kbytes of external RAM addressable
•
Embedded DSP with 6.912, 13.824 or 27.648 Mips
•
Speech and IOM-2 interface
•
BML for TDMA frame (de)multiplexing. Transmission or
reception can be programmed for any slot
•
Ciphering, scrambling, CRC checking/generation,
protected B-fields
•
Local call and B-field loop-back
•
Automatic receiver delay adjustment programmable per
slot to correct for terminal mobility
•
Phase error measurement and phase error correction by
hardware
•
Serial interface to synthesizer for frequency
programming
•
Programmable timing and polarity of radio-control
signals
•
Easy interfacing with radio circuits, operating at different
supply voltages
•
GMSK pulse shaper with two different pulse shapes
(BT = 0.5 and BT = 0.8)
•
Comparator for use as bit-slicer
•
3 channel time-multiplexed 8-bit ADC for RSSI, battery
and general input voltage measurement
•
Battery management supported by programmable
current source for temperature or charge current
measurement
•
On-chip 8-bit DAC for various purposes
•
Low power crystal oscillator at 13.824 MHz
•
Programmable on-chip capacitors for frequency
adjustment to 13.824 MHz with large pulling range
•
High performance DAC and ADC for dynamic earpiece
and dynamic or electret microphone
•
Analog-to-digital path switchable sensitivity for
microphone or line interface input
•
On-chip reference voltage and supply for electret
microphone
•
Very low ohmic buzzer output
•
Pulse density modulated or pulse width modulated
buzzer output signal
•
Power-on-reset
•
Low power operation optimized for 2 battery cells in
handset
•
Long standby time due to reduced digital supply voltage
and reduced activity in idle-locked mode
•
Flexible supply voltage concept due to use of level
shifters between each supply voltage domain
•
Eight independent supply voltage domains:
– 1.8 to 3.6 V for digital core, microcontroller ports P0
and P2, and also P1 and P3
– 1.8 to 3.6 V for buzzer, oscillator and battery
– 2.7 to 3.6 V for RF interface and analog circuits
•
CMOS technology
•
Small and flat LQFP80 package.
1998 Apr 27
3
Philips Semiconductors
Objective specification
Low cost; low power DECT baseband
controllers (ABC-PRO)
2
GENERAL DESCRIPTION
PCD509x2/zuu/v family
This family specification contains the hardware description
that is independent of the used ROM codes.
The numerical digit ‘x’ in PCD509x2 determines the
intended application area (e.g. PCD50912 for use in
handsets or PCD50922 for use in simple base stations,
etc.). The last numerical digit ‘2’ is used to denote
hardware derivatives. The extension digits ‘z’ (A to Z) and
‘uu’ (00 to 99) denote the DSP and the microcontroller
software version, respectively. The extension ‘v’ denotes
the hardware version updates of the circuit.
Although the microcontroller ROM code is present on-chip,
an external program memory for the microcontroller code
can be used. This is not the case for the DSP ROM code
which is fixed by the chip version.
Throughout this family specification the term PCD509x2 is
used to cover all sub types and versions. If any specific
feature or parameter is connected to a certain sub type or
version this will be specifically written. Until otherwise
stated this family specification is valid for hardware
version 1 (v = 1).
The PCD509x2 family is designed for low power GAP
compatible DECT handset (PP) and base station (FP)
applications. The circuit includes the audio interface, the
DSP, the microcontroller and the Burst Mode Logic, and
contains all functionality to convert speech and data
signals from/to the analog side (microphone and earpiece
or line interface circuit) to/from the radio side
(1.152 Mbits/s data).
This circuit is a member of the ABC family, where A stands
for ‘ADPCM codec’, B for ‘Burst Mode Logic’ and C for
‘microController’. The name ABC-PRO stands for
PROfessional ABC.
The PCD509x2/zuu/v contains on-chip ROM for the
embedded DSP code and on-chip ROM for the embedded
microcontroller code. It is these ROM codes that
differentiate between various chip derivatives. For each
DSP code a separate DSP user manual is published.
Please contact Philips Semiconductors for more
information.
3
ORDERING INFORMATION
TYPE
NUMBER
PCD50912H
PCD50922H
PACKAGE
NAME
LQFP80
DESCRIPTION
plastic low profile quad flat package; 80 leads; body 12
×
12
×
1.4 mm
VERSION
SOT315-1
1998 Apr 27
4
DIY/Open Source Hardware
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