Panasonic MN103001G/F01K Manual Do Utilizador

Bus Controller (BC)

8-6

Table 8-5-2 shows the operating status of the external pins concerning BC.

Table 8-5-2   Operating Status of Pins Concerning BC

Operating status

SLEEP mode

STOP mode

HALT mode

When bus is relased

Pin

SYSCLK

Operate

L

L

Operate

A23 to 0

Operate

Maintain

Maintain

Hi-Z

ADM15 to 0

Operate

Hi-Z

Hi-Z

Hi-Z

D15 to 0

Operate

Hi-Z

Hi-Z

Hi-Z

RAS2 to 1

Operate

H

H

Hi-Z

CAS

Operate

H

H

Hi-Z

DCAS1 to 0

Operate

H

H

Hi-Z

DWE

Operate

H

H

Hi-Z

CS3 to 0

Operate

H

H

Hi-Z

RE

Operate

H

H

Hi-Z

WE1 to 0

Operate

H

H

Hi-Z

BG

Operate

H

H

L

AS

Operate

L

L

Hi-Z

RWSEL

Operate

L

L

Hi-Z

Hi-Z:

High impedance

Maintain: Maintains the status from the previous bus cycle

L:

"L" level output

H:

"H" level output

Note: Because the pins listed in the table at right are all multipurpose, check the status of the external pins of the

LSI in chapter 15, “I/O Ports.”
For details on the operating status of each pin upon reset, refer to appendix D, “Pins and Their Operating

Statuses upon Reset.”