SH7670 Datasheet, PDF (408/1292 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7670 Series

Section 11 Power-Down Modes
11.2.4 Standby Control Register 4 (STBCR4)
STBCR4 is an 8-bit readable/writable register that controls the operation of modules in power-
down modes. STBCR4 is initialized to H'00 by a power-on reset but retains its previous value by a
manual reset or in software standby mode. Only byte access is valid.
Note: See section 11.4, Usage Notes, when writing data to this register.
Bit: 7

Initial Value: 0
R/W: R
6
MSTP
46
0
R/W
5
MSTP
45
0
R/W
4
MSTP
44
0
R/W
3
MSTP
43
0
R/W
2
MSTP
42
0
R/W
1
0
MSTP MSTP
41
40
0
0
R/W R/W
Initial
Bit
Bit Name Value R/W Description
7

0
R
Reserved
This bit is always read as 0. The write value should
always be 0.
6
MSTP46 0
R/W Module Stop 46
When the MSTP46 bit is set to 1, the supply of the
clock to the SSI1 is halted.
0: SSI1 runs.
1: Clock supply to SSI1 halted.
5
MSTP45 0
R/W Module Stop 45
When the MSTP45 bit is set to 1, the supply of the
clock to the SSI0 is halted.
0: SSI0 runs.
1: Clock supply to SSI0 halted.
4
MSTP44 0
R/W Module Stop 44
When the MSTP44 bit is set to 1, the supply of the
clock to the HIF is halted.
0: HIF runs.
1: Clock supply to HIF halted.
Rev. 1.00 Nov. 14, 2007 Page 382 of 1262
REJ09B0437-0100