Z8018010PSC 查看數據表（PDF） - Zilog

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Z8018010PSC

ENHANCED Z180 MICROPROCESSOR

Zilog 

Z80180/Z8S180/Z8L180

Enhanced Z180 Microprocessor

Bit 2 LNIO. This bit controls the drive capability of certain

external I/O pins of the Z8S180/Z8L180. When this bit is

set to 1, the output drive capability of the following pins is

reduced to 33percent of the original drive capability:

– /RTSO/TxS

– CKA1

– CKAO

– TXAO

– TXAI

– TOUT

Bit 1 LNCPUCTL. This bit controls the drive capability of

the CPU Control pins. When this bit is set to 1, the output

drive capability of the following pins is reduced to

33percent the original drive capability:

– /BUSACK

– /RD

– /WR

– /M1

– /MREQ

– /IORQ

– /RFSH

– /HALT

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Bit 0 LNAD/DATA. This bit controls the drive capability of

the Address/Data bus output drivers. If this bit is set to 1,

the output drive capability of the Address and Data bus

output is reduced to 33percent of its original drive

capability.

1-36

PRELIMINARY

DS971800401

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