LPC47M14X datasheet(138/205 Pages) SMSC

138 / 205 page

SMSC DS – LPC47M14X

Page 138

Rev. 03/19/2001

NAME

REG OFFSET

(hex)

DESCRIPTION

GP11

Default = 0x01

on VTR POR

(R/W)

General Purpose I/0 bit 1.1

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

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

Bit[2] Alternate Function Select

1= J1B2 (Joystick 1, Button 2)

0=GPIO

Bits[6:3] Reserved

Bit[7] Output Type Select

1=Open Drain

0=Push Pull

GP12

Default = 0x01

on VTR POR

(R/W)

General Purpose I/0 bit 1.2

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

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

Bit[2] Alternate Function Select

1= J2B1 (Joystick 2, Button 1)

0=GPIO

Bits[6:3] Reserved

Bit[7] Output Type Select

1=Open Drain

0=Push Pull

GP13

Default = 0x01

on VTR POR

(R/W)

General Purpose I/0 bit 1.3

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

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

Bit[2] Alternate Function Select

1= J2B2 (Joystick 2, Button 2)

0=GPIO

Bits[6:3] Reserved

Bit[7] Output Type Select

1=Open Drain

0=Push Pull

GP14

Default = 0x01

on VTR POR

(R/W)

General Purpose I/0 bit 1.4

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

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

Bit[2] Alternate Function Select

1= J1X (Joystick 1, X-Axis RC Constant)

0=GPIO

Bits[6:3] Reserved

Bit[7] Output Type Select

1=Open Drain

0=Push Pull

GP15

Default = 0x01

on VTR POR

(R/W)

General Purpose I/0 bit 1.5

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

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

Bit[2] Alternate Function Select

1= J1Y (Joystick 1, Y-Axis RC Constant)

0=GPIO

Bits[6:3] Reserved

Bit[7] Output Type Select

1=Open Drain

0=Push Pull

LPC47M14X Fiches technique(PDF) 138 Page - SMSC Corporation

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