CableCARD
TM
INTERFACE CONTROLLER
CXD1969
Customer Requirements Specification
DESCRIPTION
The CXD1969 is an ‘Plug & Play’ and OpenCable
TM
CableCARD
TM
interface controller IC designed for use with
OpenCable
TM
compliant CableCARD
TM
modules. It performs
the communication interface between a host microcontroller
and the CableCARD
TM
. The IC communicates to the Host
either by a 68k-type or I
2
C connection. Communication
between the CXD1969 and the CableCARD
TM
is highly efficient
due to the inclusion of a fully integrated hardware Physical
layer.
MPEG2 Transport Stream interfaces are fully programmable
ensuring compatibility to commonly used Front End
demodulators and MPEG2 decoders.
A SCTE 28 compliant software stack is also available for this
device.
100 pin Plastic LQFP
FEATURES
PC Card Interface
•
Fully integrated CableCARD
TM
interface.
•
Support for generic PC Cards.
•
Supports 3V3 modules (VPP either 3V3 or 5V)
•
Integrated Physical layer with 1Kbyte buffers.
Host Interface
•
68k-type host bus interface
•
27MHz or 33MHz operating frequency.
•
I
2
C host bus interface.
•
100kHz or 400kHz operation.
•
Maskable/programmable interrupt capability.
•
3V3 logic levels.
OOB Interface
•
Supports SCTE 28 Bidirectional OOB I/F.
Transport Stream Interfaces
•
Accepts MPEG2 compliant TS.
•
SCTE28 compliant parallel TS interfaces
to/from POD Card.
•
TS interface from tuner (up to 72Mbits/s).
•
Serial TS interface to downstream device (up
to 72Mbits/s).
•
Four serial input and output modes.
Miscellaneous
•
Integrated PLL for serial TS.
•
5V compatible I/Os.
•
LQFP 100-pin package.
APPLICATIONS
•
iDTV
•
Set Top Box
•
Personal Video Recorder (PVR)
Document No. DC_D1969_CM_2108
Version: 3.0
-1-
Released: Jul 2004
CXD1969
2 Key differences between CXD2099AR and CXD1969
•
•
•
•
•
•
•
•
•
•
•
•
•
Clock frequency can be 27MHz or 33MHz
No change to 68k host interface
Polarity/function of HIRQ is now programmable
Removed ability to extend data and address lines by the use of external buffers
TS Input I/F is now serial only,
(parallel
TS input removed)
No change to TS Output I/F
Hot-swap state machine removed
Support for dual-slot removed
VCCSW and OVERLOAD functionality removed
VCCSEL changed to VPPSEL to support 3V3 or 5V PODs
Bidirectional OOB I/F added
Technology
process
change, some changes to DC spec
Pinout
optimized for POD
Document No. DC_D1969_CM_2108
Version: 3.0
-5-
Released: Jul 2004
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