CSP1034C-T11 Agere Systems, CSP1034C-T11 Datasheet - Page 2

• Manufacturer Part Number: CSP1034C-T11
• Description: Modem IC
• Manufacturer: Agere Systems

April 2005
Agere Systems Inc.
Functional Description
The Agere Systems OCM-22 chip set is a two-chip solution consisting of an Agere Systems OCM-22 and a
CSP1034C or CSP1035A. A block diagram of the OCM-22 chip sets are illustrated in Figure 1 and Figure 2.
DIA Port
OCM-22 provides a system interface for use in embedded applications that requires only two address lines, a read/
write strobe, and a single chip select. The interface feeds directly into the DIAs four registers.
The following diagram shows how the host system and the OCM-22 interface. In this configuration, external logic
decodes the address that selects the DIA port, and the embedded application accesses the four control registers
associated with the DIA port to communicate with OCM-22. This configuration also allows a clean interface to
external plug-and-play and PCMCIA interface devices.
PROCESSOR
PROCESSOR
SYSTEM
SYSTEM
MICRO-
MICRO-
Figure 1. OCM-22 + CSP1035A Universal DAA Chip Set Block Diagram
PARALLEL/
PARALLEL
SERIAL
SERIAL/
Figure 2. OCM-22 + CSP1034C Chip Set Block Diagram
OCM-22
OCM-22
48-PIN
48-PIN
TQFP
TQFP
OCM-22 CONTROLLERLESS MODEM CHIP
OCM-22 CONTROLLERLESS MODEM CHIP
AGERE SYSTEMS
AGERE SYSTEMS
CSP1034C LINE
48-PIN TQFP
CODEC
CSP1035A (LINE-POWERED)
LINE
CODEC
48-PIN TQFP
One-Chip Modem for Embedded Applications
UNIVERSAL
DAA
U-DAA
COMPONENTS
REMAINING
DAA CIRCUIT
STANDARD
U-DAA
FOR
TELEPHONE
TELEPHONE
LINE
LINE
D5-9559 (F)a R.02
5-9560 (F)a R.02
2