PEB20534H-10 SIEMENS [Siemens Semiconductor Group], PEB20534H-10 Datasheet - Page 140

• Manufacturer Part Number: PEB20534H-10
• Description: DMA Supported Serial Communication Controller with 4 Channels DSCC4
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Semiconductor Group
The clocking concept is illustrated in a block diagram manner in the following figure:
Additional control signals are not illustrated (please refer to the detailed clock mode
descriptions below).
Figure 41
Clock Supply Overview
settings controlled by:
register CCR0, bit field ’CM’
selects the clock mode number
register CCR0, bit ’SSEL’
selects the additional a/b option
TTL
Oscillator
or CRYSTAL
3a
7a
Transmitter
0b
3b
7b
DPLL
2b
6b
Serial Communication Controller (SCC) Cores
f
f
DPLL
TRM
1
5
0b
6a/b
7a/b
0a
2a
6a
4
140
BRG
f
BRG
2a/b
3a/b
16:1
f
BRG/16
2a/b
3a
6a/b
7a
Receiver
3b
7b
f
RxCLK
f
REC
0a/b
1
5
4
f
TxCLK
Data Sheet 09.98
PEB 20534