Epson S1D13706 - Page 129

Epson Research and Development
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Hardware Functional Specification S1D13706
Issue Date: 01/11/13 X31B-A-001-08
Note
For information on GPIO pin mapping when HR-TFT/D-TFD panels are selected, see
Table 4-10: “LCD Interface Pin Mapping,” on page 31.
bit 6 GPIO6 Pin IO Status
When a D-TFD panel is not selected (REG[10h] bits 1:0) and GPIO6 is configured as an
output, writing a 1 to this bit drives GPIO6 high and writing a 0 to this bit drives GPIO6
low.
When a D-TFD panel is not selected (REG[10h] bits 1:0) and GPIO6 is configured as an
input, a read from this bit returns the status of GPIO6.
When a D-TFD panel is enabled (REG[10h] bits 1:0 = 11), GPIO6 outputs the YSCLD
signal automatically and writing to this bit has no effect.
bit 5 GPIO5 Pin IO Status
When a D-TFD panel is not selected (REG[10h] bits 1:0) and GPIO5 is configured as an
output, writing a 1 to this bit drives GPIO5 high and writing a 0 to this bit drives GPIO5
low.
When a D-TFD panel is not selected (REG[10h] bits 1:0) and GPIO5 is configured as an
input, a read from this bit returns the status of GPIO5.
When a D-TFD panel is enabled (REG[10h] bits 1:0 = 11) and a 1 is written to this bit, the
D-TFD signal DD_P1 signal is enabled.
When a D-TFD panel is enabled (REG[10h] bits 1:0 = 11) and a 0 is written to this bit, the
D-TFD signal DD_P1 signal is forced low.
bit 4 GPIO4 Pin IO Status
When a D-TFD panel is not selected (REG[10h] bits 1:0) and GPIO4 is configured as an
output, writing a 1 to this bit drives GPIO4 high and writing a 0 to this bit drives GPIO4
low.
When a D-TFD panel is not selected (REG[10h] bits 1:0) and GPIO4 is configured as an
input, a read from this bit returns the status of GPIO4.
When a D-TFD panel is enabled (REG[10h] bits 1:0 = 11), GPIO4 outputs the RES signal
automatically and writing to this bit has no effect.
General Purpose IO Pins Status/Control Register 0
REG[ACh] Read/Write
n/a
GPIO6 Pin IO
Status
GPIO5 Pin IO
Status
GPIO4 Pin IO
Status
GPIO3 Pin IO
Status
GPIO2 Pin IO
Status
GPIO1 Pin IO
Status
GPIO0 Pin IO
Status
76543210