Block Diagram - Toshiba TMPR4925 Manual

16.2 Block Diagram

See Figure 16.2.1 for a block diagram of the CHI Module.
The CHI Module consists of holding registers (both transmit and receive), shift registers (both transmit
and receive), DMA support, and other logic to support interfacing to various types of TDM highways.
Control From CPU
TX TDM
Switch
CTRL
REG
CHI
CTRL
and
STAT
REG
RX TDM
SWITCH
CTRL
REG
RX Hold Load
Data from DMA or CPU
32B TX Hold REG-A
MSB VS LSB First
TX Shift Load
CMP
8B TX Shift REG
CLK
TX CH CNT
Clock
and
Control
Logic
RX CH CNT
CMP
8B RX Shift REG
MSB VS LSB First
32B RX Hold REG-A
Data to DMA or CPU
Figure 16.2.1 CHI Module Block Diagram
16-2
Chapter 16 CHI Module
32
32B TX Hold REG-B
8
8
OUT
REG
PRGM
Divider
SYNCH
PRGM
Divider
SYNCH
SYNCH
8
8
32B RX Hold REG-B
32
TXOE
CHIDOUT
CHICLK
CHIFS
CHIDIN