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2 input/output pins, 3 register descriptions – Renesas SH7781 User Manual

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17. Power-Down Mode

Rev.1.00 Jan. 10, 2008 Page 783 of 1658

REJ09B0261-0100

17.2

Input/Output Pins

Table 17.2 shows the pins related to power-down mode.

Table 17.2 Pin Configuration

Pin name

Function

I/O

Description

STATUS1

Processing state 1

Output

Indicate the operating states of this LSI

STATUS0

Processing state 2

STATUS1 STATUS0 Operating states

H H Reset

H

L

Sleep

mode

L L Normal

operation

The STATUS1 pin is multiplexed with the DRAK1
(DMAC) and PK6 (GPIO) pins. The STATUS0 pin
is multiplexed with the DRAK0 (DMAC) and PK7
(GPIO) pins.

Note: L means low level, and H means high level.

17.3

Register Descriptions

Table 17.3 shows the list of registers. Table 17.4 shows the register states in each processing
mode.

Table 17.3 Register Configuration

Table 17.3 Register Configuration

Register Name

Abbreviation

R/W

P4 Address

Area 7
Address

Access
Size

Sync
clock

Sleep control register

SLPCR

R/W

H'FFC8 0020 H'1FC8 0020 32

Pck

Standby control register 0 MSTPCR0

R/W

H'FFC8 0030 H'1FC8 0030 32

Pck

Standby control register 1 MSTPCR1

R/W

H'FFC8 0034 H'1FC8 0034 32

Pck

Standby display register

MSTPMR

R

H'FFC8 0044 H'1FC8 0044 32

Pck

Note: For details of MSTPCR0 and MSTPCR1, see figure 15.1.