Epson S1D13708 Manuel D’Utilisation
Epson Research and Development
Page 121
Vancouver Design Center
Hardware Functional Specification
S1D13708
Issue Date: 02/03/07
X39A-A-001-02
8.3 Register Descriptions
Unless specified otherwise, all register bits are set to 0 during power-on.
8.3.1 Read-Only Configuration Registers
Note
The S1D13708 returns a value of 34h.
bits 7-2
Product Code
These are read-only bits that indicates the product code. The product code is 001101.
These are read-only bits that indicates the product code. The product code is 001101.
bits 1-0
Revision Code
These are read-only bits that indicates the revision code. The revision code is 00.
These are read-only bits that indicates the revision code. The revision code is 00.
bits 7-0
Display Buffer Size Bits [7:0]
This is a read-only register that indicates the size of the SRAM display buffer measured in
4K byte increments. The S1D13708 display buffer is 80K bytes and therefore this register
returns a value of 20 (14h).
This is a read-only register that indicates the size of the SRAM display buffer measured in
4K byte increments. The S1D13708 display buffer is 80K bytes and therefore this register
returns a value of 20 (14h).
Value of this register = display buffer size
÷
4K bytes
= 80K bytes
÷
4K bytes
= 20 (14h)
bits 7-0
CNF[7:0] Status
These read-only status bits return the status of the configuration pins CNF[7:0]. CNF[7:0]
are latched at the rising edge of RESET#.
These read-only status bits return the status of the configuration pins CNF[7:0]. CNF[7:0]
are latched at the rising edge of RESET#.
Revision Code Register
REG[00h]
REG[00h]
Read Only
Product Code Bits 5-0
Revision Code Bits 1-0
7
6
5
4
3
2
1
0
Display Buffer Size Register
REG[01h]
REG[01h]
Read Only
Display Buffer Size Bits 7-0
7
6
5
4
3
2
1
0
Configuration Readback Register
REG[02h]
REG[02h]
Read Only
CNF7 Status
CNF6 Status
CNF5 Status
CNF4 Status
CNF3 Status
CNF2 Status
CNF1 Status
CNF0 Status
7
6
5
4
3
2
1
0