M32C80 Datasheet, PDF (274/352 Pages) Renesas Technology Corp – 16/32-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M32C/80 SERIES

M32C/80 Group
21. Intelligent I/O (Communication Function)
Communication Clock Select Register
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
CCS
Address
00F616
After Reset
XXXX 00002
Bit
Symbol
Bit Name
Function
RW
b1b0
CCS0
0 0: Clock stopped
RW
Communication Unit 0 _{0 1: f1}(1)
Clock Select Bit
CCS1
1 0: f2n
RW
1 1: f8
b3b2
CCS2
0 0: Clock stopped
RW
Communication Unit 1 _{0 1: f1}(1)
Clock Select Bit
1 0: f2n
CCS3
1 1: f8
RW
Nothing is assigned. When write, set to "0".
(b7 - b4) ^{When read, its contents is indeterminate.}
NOTE:
1. This setting is enabled in HDLC data processing mode. Do not set the CCS1 and CC0 bits or
CCS3 and CCS2 bits to "012" in clock synchronous serial I/O mode.
Figure 21.11 CCS Register
Rev. 1.00 Nov. 01, 2005 ^{Page 255} of 330
REJ09B0271-0100