Z86017 datasheet(33/138 Pages) ZILOG

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Z86017/Z16017 PCMCIA Interface Solution

Product Specification

PCMCIA Interface Overview

PS012002-1201

• PC_HIOR (Input, 100K Pull-Up)

PCMCIA Mode: In PCMCIA I/O mode, this is the Input/Output Read

Strobe.

ATA/IDE Mode: Input/Output Read Strobe.

• PC_HIOW (Input, 100K Pull-Up)

PCMCIA Mode: In PCMCIA I/O mode, this is the Input/Output

Write Strobe.

ATA/IDE Mode: Input/Output Write Strobe.

• PC_HRESET/HRESET(Input, Schmitt-Triggered, 100K Pull-Up)

PCMCIA Mode: Active High input Reset signal.

ATA/IDE Mode: Active Low input Reset signal.

• PC_RDY/BSY/IREQ/HINT (Output, 8 mA)

PCMCIA Mode: In PCMCIA memory mode, this signal is READY/

BUSY. This signal will be asserted BUSY by the RESET logic. In

PCMCIA I/O mode, this signal is /IREQ.

ATA/IDE Mode: When enabled, the HINT signal is used to interrupt

the host (active High).

• PC_WP//IOIS16//IOCS16 (Output, Tri-State, 8 mA)

PCMCIA Mode: In PCMCIA memory mode, this signal is Write

Protected. In PCMCIA I/O mode, this signal is IOIS16 and indicates

that a 16-bit capable I/O device is being accessed on the PCMCIA

bus.

ATA/IDE Mode: I/O chip select 16 indicates that a 16- bit transfer is

active on the bus.

• PC_WAIT/IOCHRDY (Output, Tri-State, 8 mA)

PCMCIA Mode: Insert Wait States when held active and the chip is

being selected in I/O or memory mode.

ATA/IDE Mode: Inserts Wait States when held active, and when the

chip is being selected.

• PC_INPACK/DREQ (Output, Tri-State, 8 mA)

PCMCIA Mode: In PCMCIA I/O mode this signal is Input

Acknowledge. It is asserted by the card when the card is selected and

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