PD6710 View Datasheet(PDF) - Intel

Part Name

Description

Manufacturer

PD6710

ISA-to-PC-Card (PCMCIA) Controllers

Intel 

PD6710/’22 — ISA-to-PC-Card (PCMCIA) Controllers

4.1.3

PD67XX Functional Blocks

Figure 7. Functional Block Diagram

Control

Address

Data

Clock

INTR

IRQs

Per Chip

Per Socket

Bus

Interface

Unit

Operation

Registers

Synthe-

sizer

Interrupt

Control

Mapper

and

Offset

Socket

Bus Control

Socket

Timing Control

Write

FIFO

Power Control

WP/-IOIS16

-WAIT

Control

Data

Address

CD1, CD2

BVD, -STSCHG

RDY/-IREQ

VCC Control

VPP Control

4.1.4

Interrupts

The PD67XX provides ten interrupt pins that are labeled with names suggesting their mapping in

the system, though there are no hard requirements specifying the exact mapping. Typically, all ten

interrupt pins should be connected to system interrupt signals to allow maximum flexibility in

programming interrupt routing from the PD67XX.

Classes of Interrupts

The PD67XX supports two classes of interrupts:

• Socket or card interrupts initiated by the PC Card activating its RDY/-IREQ signal

• Management interrupts triggered by changes in PC Card status, including:

— Card insertion or removal

— Battery warning indicator (BVD2) change on a memory-type card

— Battery dead indicator (BVD1) or I/O-type card status change (-STSCHG)

— Ready (RDY) status change on a memory-type card

Either class of interrupts can be routed to any of the ten interrupt pins on the PD67XX.

30

Datasheet

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