sed1374 ETC-unknow, sed1374 Datasheet - Page 75

• Manufacturer Part Number: sed1374
• Description: Sed1374 Embedded Memory Color Lcd Controller
• Manufacturer: ETC-unknow

Epson Research and Development
Vancouver Design Center
bits 3-0
bits 4-0
bits 4-0
Hardware Functional Specification
Issue Date: 99/04/29
REG[17h] Look-Up Table Data Register
Address = FFF7h
REG[18h] GPIO Configuration Control Register
Address = FFF8h
REG[19h] GPIO Status/Control Register
Address = FFF9h
n/a
n/a
n/a
n/a
n/a
n/a
Note
Look-Up Table Data Bits [3:0]
This register is used to read/write the RGB Look-Up Tables. This register is an aperture
into the three 16-position Look-Up Tables. The Look-Up Table Address Register
(REG[16h]) selects which Look-Up Table position is accessible. See REG[16h] Look-Up
Table Bank Select Register on page 66.
GPIO[4:0] Pin IO Configuration
These bits determine the direction of the GPIO[4:0] pins.
When GPIOn Pin IO Configuration bit = 0, the corresponding GPIOn pin is configured as
an input. The input can be read at the GPIOn Status/Control Register bit. See REG[19h]
below.
When GPIOn Pin IO Configuration bit = 1, the corresponding GPIOn pin is configured as
an output. The output can be controlled by writing the GPIOn Status/Control Register bit.
GPIO[4:0] Status
When the GPIOn pin is configured as an input, the corresponding GPIO Status bit is used
to read the pin input. See REG[18h] above.
When the GPIOn pin is configured as an output, the corresponding GPIO Status bit is used
to control the pin output.
These bits have no effect when the GPIOn pin is configured for a specific function (i.e.
as FPDAT[11:8] for TFT/MD-TFD operation). All unused GPIO pins must be tied to
IO V
DD
n/a
n/a
n/a
.
GPIO4 Pin IO
GPIO4 Pin IO
Configuration
Status
n/a
GPIO3 Pin IO
GPIO3 Pin IO
Configuration
Table Data
Look-Up
Status
Bit 3
GPIO2 Pin IO
GPIO2 Pin IO
Configuration
Table Data
Look-Up
Status
Bit 2
GPIO1 Pin IO
GPIO1 Pin IO
Configuration
Table Data
Look-Up
Status
Bit 1
Read/Write
Read/Write
GPIO0 Pin IO
Read/Write
GPIO0 Pin IO
Configuration
X26A-A-001-02
Table Data
Look-Up
Status
Bit 0
SED1374
Page 67