MCP23018 查看數據表（PDF） - Microchip Technology

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MCP23018

16-Bit I/O Expander with Open-Drain Outputs

Microchip Technology 

MCP23018/MCP23S18

TABLE 1-5: CONTROL REGISTER SUMMARY (IOCON.BANK = 0)

Register

Name

Address

(hex)

bit 7

bit 6

bit 5

bit 4

bit 3

bit 2

bit 1

bit 0

POR/RST

value

IODIRA

IODIRB

IPOLA

IPOLB

GPINTENA

GPINTENB

DEFVALA

DEFVALB

INTCONA

INTCONB

IOCON

IOCON

GPPUA

GPPUB

INTFA

INTFB

INTCAPA

INTCAPB

GPIOA

GPIOB

OLATA

OLATB

00

IO7

IO6

IO5

IO4

IO3

IO2

IO1

IO0 1111 1111

01

IO7

IO6

IO5

IO4

IO3

IO2

IO1

IO0 1111 1111

02

IP7

IP6

IP5

IP4

IP3

IP2

IP1

IP0 0000 0000

03

IP7

IP6

IP5

IP4

IP3

IP2

IP1

IP0 0000 0000

04

GPINT7 GPINT6 GPINT5 GPINT4 GPINT3 GPINT2 GPINT1 GPINT0 0000 0000

05

GPINT7 GPINT6 GPINT5 GPINT4 GPINT3 GPINT2 GPINT1 GPINT0 0000 0000

06

DEF7 DEF6 DEF5 DEF4 DEF3 DEF2 DEF1 DEF0 0000 0000

07

DEF7 DEF6 DEF5 DEF4 DEF3 DEF2 DEF1 DEF0 0000 0000

08

IOC7

IOC6

IOC5

IOC4

IOC3

IOC2

IOC1

IOC0 0000 0000

09

IOC7

IOC6

IOC5

IOC4

IOC3

IOC2

IOC1

IOC0 0000 0000

0A

BANK MIRROR SEQOP

—

—

ODR INTPOL INTCC 0000 0000

0B

BANK MIRROR SEQOP

—

—

ODR INTPOL INTCC 0000 0000

0C

PU7

PU6

PU5

PU4

PU3

PU2

PU1

PU0 0000 0000

0D

PU7

PU6

PU5

PU4

PU3

PU2

PU1

PU0 0000 0000

0E

INT7

INT6

INT5

INT4

INT3

INT2

INT1

INTO 0000 0000

0F

INT7

INT6

INT5

INT4

INT3

INT2

INT1

INTO 0000 0000

10

ICP7

ICP6

ICP5

ICP4

ICP3

ICP2

ICP1

ICP0 0000 0000

11

ICP7

ICP6

ICP5

ICP4

ICP3

ICP2

ICP1

ICP0 0000 0000

12

GP7

GP6

GP5

GP4

GP3

GP2

GP1

GP0 0000 0000

13

GP7

GP6

GP5

GP4

GP3

GP2

GP1

GP0 0000 0000

14

OL7

OL6

OL5

OL4

OL3

OL2

OL1

OL0 0000 0000

15

OL7

OL6

OL5

OL4

OL3

OL2

OL1

OL0 0000 0000

© 2008 Microchip Technology Inc.

DS22103A-page 17

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