LPC47M14X datasheet(146/205 Pages) SMSC

146 / 205 page

SMSC DS – LPC47M14X

Page 146

Rev. 03/19/2001

NAME

REG OFFSET

(hex)

DESCRIPTION

GP61

Default = 0x01

on VTR POR

(R/W)

General Purpose I/0 bit 6.1

Bit[0] In/Out : =1 Input, =0 Output

Bit[1] Polarity : =1 Invert, =0 No Invert

Bit[3:2] Alternate Function Select

11=Reserved

10=Either Edge Triggered Interrupt Input 5 (Note 1)

01=LED2

00=GPIO

Bits[6:4] Reserved

Bit[7] Output Type Select

1=Open Drain

0=Push Pull

N/A

(R)

Reserved – reads return 0

N/A

(R)

Reserved – reads return 0

GP1

Default = 0x00

on VTR POR

(R/W)

General Purpose I/0 Data Register 1

Bit[0] GP10

Bit[1] GP11

Bit[2] GP12

Bit[3] GP13

Bit[4] GP14

Bit[5] GP15

Bit[6] GP16

Bit[7] GP17

GP2

Default = 0x00

on VTR POR

(R/W)

General Purpose I/0 Data Register 2

Bit[0] GP20

Bit[1] GP21

Bit[2] GP22

Bit[3] Reserved

Bit[4] GP24

Bit[5] GP25

Bit[6] GP26

Bit[7] GP27

GP3

Default = 0x00

on VTR POR

Bits 2 and 3 are

reset on VCC POR,

Hard Reset and VTR

POR

(R/W)

General Purpose I/0 Data Register 3

Bit[0] GP30

Bit[1] GP31

Bit[2] GP32

Bit[3] GP33

Bit[4] GP34

Bit[5] GP35

Bit[6] GP36

Bit[7] GP37

GP4

Default = 0x00

on VTR POR

(R/W)

General Purpose I/0 Data Register 4

Bit[0] GP40

Bit[1] GP41

Bit[2] GP42

Bit[3] GP43

Bit[7:4] Reserved

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