2 register descriptions – Renesas SH7781 User Manual

Page 245

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8. Caches

Rev.1.00 Jan. 10, 2008 Page 215 of 1658

REJ09B0261-0100

8.2

Register Descriptions

The following registers are related to cache.

Table 8.3

Register Configuration

Register Name

Abbreviation R/W P4 Address*

Area 7 Address* Size

Cache control register

CCR

R/W H

'

FF00 001C

H

'

1F00 001C

32

Queue address control register 0

QACR0

R/W H

'

FF00 0038

H

'

1F00 0038

32

Queue address control register 1

QACR1

R/W H

'

FF00 003C

H

'

1F00 003C

32

On-chip memory control register

RAMCR

R/W H

'

FF00 0074

H

'

1F00 0074

32

Note: * These P4 addresses are for the P4 area in the virtual address space. These area 7

addresses are accessed from area 7 in the physical address space by means of the
TLB.

Table 8.4

Register States in Each Processing State

Register Name

Abbreviation

Power-on Reset Manual Reset

Sleep

Standby

Cache control register

CCR

H

'

0000 0000

H

'

0000 0000

Retained

Retained

Queue address control register 0 QACR0 Undefined Undefined

Retained

Retained

Queue address control register 1 QACR1 Undefined Undefined

Retained

Retained

On-chip memory control register RAMCR

H

'

0000 0000

H

'

0000 0000

Retained

Retained

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