X68C75JM datasheet(7/26 Pages) XICOR

Part #	X68C75JM

Description	Port Expander and E2 Memory

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Manufacturer	XICOR [Xicor Inc.]

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7

X68C75 SLIC® E2

Figure 7. On-Chip Registers

2899 ILL F07.3C

76543210

0400

0

LAM

0

RST

A15

A14

A13

EEM*

E2 Memory Map Register

MSB

LSB

0408

PDRB

Port Data Register B

MSB

LSB

0410

PDRA

Port Data Register A

INT

INTA

INTB

ENA

ENB

ENEE

0

EOW

0418

ISR

Interrupt Status Register

IRST

1

AWO

BWO

DIRA

DIRB

STRA STRB

0420

CR

Configuration Register

MSB

LSB

0428

PPRB

Port Pin Register B

MSB

LSB

MSB

LSB

MSB

LSB

0430

PPRA

Port Pin Register A

NOTE: * The value returned by reading these registers is the complement

of the actual data. These registers are nonvolatile and a special SDP

sequence is used to alter their contents. All the other registers are

initialized by a valid reset input signal and when the device is power cycled.

0438

Special Function Register

Memory Map Register

1

0

A15

A14

A13

A12

A11

A10

SFRM*

0600

060F

16 Bytes General Purpose SRAM

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