Epson Research and Development

Page 105

Vancouver Design Center

 

 

 

GPIO Configuration Register 1

 

 

 

 

 

REG[1Fh]

 

 

 

 

 

 

 

RW

 

 

 

 

 

 

 

 

 

n/a

n/a

 

n/a

n/a

GPIO11 Pin

GPIO10 Pin

GPIO9 Pin

GPIO8 Pin

 

IO Config.

IO Config.

IO Config.

IO Config.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

bit 3

 

GPIO11 Pin IO Configuration

 

 

 

 

 

 

When this bit = 1, GPIO11 is configured as an output. When this bit = 0 (default), GPIO11 is con-

 

 

figured as an input. Note the MD8 pin must be high at the rising edge of RESET# to enable

 

 

GPIO11, otherwise the VRTC pin is controlled automatically and this bit will have no effect on

 

 

hardware.

 

 

 

 

 

bit 2

 

GPIO10 Pin IO Configuration

 

 

 

 

 

 

When this bit = 1, GPIO10 is configured as an output. When this bit = 0 (default), GPIO10 is con-

 

 

figured as an input. Note the MD8 pin must be high at the rising edge of RESET# to enable

 

 

GPIO10, otherwise the HRTC pin is controlled automatically and this bit will have no effect on

 

 

hardware.

 

 

 

 

 

bit 1

 

GPIO9 Pin IO Configuration

 

 

 

 

 

 

When this bit = 1, GPIO9 is configured as an output. When this bit = 0 (default), GPIO9 is config-

 

 

ured as an input.

 

 

 

 

 

 

 

Note

 

 

 

 

 

 

 

GPIO9 and GPIO8 must always be set to the same function (both to input or both to output).

 

 

The MD8 pin must be high at the rising edge of RESET# to enable GPIO9, otherwise the DACRS1

 

 

pin is controlled automatically and this bit will have no effect on hardware.

 

bit 0

 

GPIO8 Pin IO Configuration

 

 

 

 

 

 

When this bit = 1, GPIO8 is configured as an output. When this bit = 0 (default), GPIO8 is config-

 

 

ured as an input.

 

 

 

 

 

Note

GPIO8 and GPIO9 must always be set to the same function (both to input or both to output).

The MD8 pin must be high at the rising edge of RESET# to enable GPIO8, otherwise the DACRS0 pin is controlled automatically and this bit will have no effect on hardware.

Hardware Functional Specification

S1D13504

Issue Date: 01/01/30

X19A-A-002-18

Page 111
Image 111
Epson S1D13504 manual REG1Fh GPIO11 Pin GPIO10 Pin GPIO9 Pin GPIO8 Pin IO Config