PSB7238 SIEMENS [Siemens Semiconductor Group], PSB7238 Datasheet - Page 8

• Manufacturer Part Number: PSB7238
• Description: Joint Audio Decoder-Encoder - Multimode
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Semiconductor Group
Interfaces
– 4-line IOM-2/PCM interface
– 5-line serial audio interface, e.g. for connection to videocodec/H.221/223 processor
– Parallel 8-bit Host interface
– 4-line general purpose interface
– External memory interface to external SRAM with programmable waitstates (0 to 15),
Control
– Programmable via parallel host interface
– Operating parameters and mode settings via a register bank
– Access to audio channels and HDLC/serial transparent data controllers from DSP or
– Interface to external software via a full-duplex 256-byte on-chip mailbox
– H.221/H.223 oriented inband configuration/mode switching
General
– Supply voltage: 3.0 - 3.6 V
– Additional 4.5 to 5.5 V supply for connection to 5-V systems without external
– Ambient temperature range 0 C to + 70 C
– P-TQFP-100 package
for development purposes only.
an external host
components
8
Data Sheet 1998-07-01
Introduction
PSB 7238