Renesas SH7781 User Manual

Page 1563

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31. Register List

Rev.1.00 Jan. 10, 2008 Page 1533 of 1658

REJ09B0261-0100

31.2

States of the Registers in the Individual Operating Modes

The states of the I/O registers incorporated in the SH7785 in the individual operating modes are
listed in tables 31.2 to table 31.9. The registers are described in order of section number in this
manual, and are grouped by functional module. Since this is a summary, parts of the descriptions,
along with the notes, have been omitted. For details on the registers, refer to the descriptions in the
corresponding sections.

Table 31.2 States of the Registers in the Individual Operating Modes (1)

Module

Name Name

Abbrev.

Power-on

Reset by
PRESET Pin/
WDT/H-UDI

Manual Reset

by

WDT/Multiple

Exception

Sleep/

Deep Sleep by

SLEEP

Instruction

TRAPA exception register

TRA

Undefined Undefined Retained

Exception

processing

Exception event register

EXPEVT

H'0000 0000

H'0000 0020

Retained

Interrupt

event

register

INTEVT Undefined Undefined Retained

Non-support detection exception register EXPMASK H'0000

0013 H'0000

0013 Retained

MMU

Page table entry high register

PTEH

Undefined Undefined Retained

Page table entry low register

PTEL

Undefined Undefined Retained

Translation table base register

TTB

Undefined

Undefined

Retained

TLB exception address register TEA

Undefined

Retained

Retained

MMU control register

MMUCR

H'0000 0000

H'0000 0000

Retained

Physical address space control register

PASCR

H'0000 0000

H'0000 0000

Retained

Instruction re-fetch inhibit control register IRMCR

H'0000

0000 H'0000

0000 Retained

Page table entry assistance register

PTEA

Undefined Undefined Retained

Cache

Cache control register

CCR

H'0000 0000

H'0000 0000

Retained

Queue address control register 0

QACR0 Undefined Undefined Retained

Queue address control register 1

QACR1 Undefined Undefined Retained

On-chip memory control register

RAMCR

H'0000 0000

H'0000 0000

Retained

L memory

L memory transfer source address register

0

LSA0

Undefined Undefined Retained

L memory transfer source address register

1

LSA1

Undefined Undefined Retained

L memory transfer destination address

register 0

LDA0

Undefined Undefined Retained

L memory transfer destination address

register 1

LDA1

Undefined Undefined Retained

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