SH7146 Datasheet, PDF (893/1022 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Bit
4
3
2 to 0
Section 22 Power-Down Modes
Bit Name
MSTP12
Initial
Value
1
MSTP11 1

All 1
R/W Description
R/W Module Stop Bit 12
When this bit is set to 1, the supply of the clock to the
SCI_1 is halted.
0: SCI_1 operates
1: Clock supply to SCI_1 halted
R/W Module Stop Bit 11
When this bit is set to 1, the supply of the clock to the
SCI_0 is halted.
0: SCI_0 operates
1: Clock supply to SCI_0 halted
R Reserved
These bits are always read as 1. The write value should
always be 1.
22.3.4 Standby Control Register 4 (STBCR4)
STBCR4 is an 8-bit readable/writable register that controls the operation of modules in power-
down mode.
Bit: 7
6
5
4
MSTP MSTP MSTP
23
22
21
-
Initial value: 1
1
1
1
R/W: R/W R/W R/W R
3
2
1
0
-
MSTP MSTP MSTP
18
17
16
1
1
1
1
R R/W R/W R/W
Initial
Bit
Bit Name Value R/W Description
7
MSTP23 1
R/W Module Stop Bit 23
When this bit is set to 1, the supply of the clock to the
MTU2S is halted.
0: MTU2S operates
1: Clock supply to MTU2S halted
Rev. 3.00 May 17, 2007 Page 849 of 974
REJ09B0229-0300