SH7672 datasheet(408/1292 Pages) RENESAS

408 / 1292 page

Section 11 Power-Down Modes

Rev. 1.00 Nov. 14, 2007 Page 382 of 1262

REJ09B0437-0100

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.

76543210

Bit:

Initial Value:

R/W:

0000

R/W

MSTP



MSTP

Bit

Bit Name

Initial

Value

R/W

Description



Reserved

This bit is always read as 0. The write value should

always be 0.

MSTP46

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.

MSTP45

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.

MSTP44

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.

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