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S1D13505 Hardware Functional Specification
X23A-A-001-14 Issue Date: 01/02/02
REG[10h] bits 7-0 Screen 1 Start Address Bits [19:0]
REG[11h] bits 7-0 These registers form the 20-bit address for the starting word of the Screen 1 image in
REG[12h] bits 3-0 the display buffer.
Note that this is a word address.
A combination of this register and the Pixel Panning register (REG[18h]) can be used to uniquely
identify the start (top left) pixel within the Screen 1 image stored in the display buffer.
See “Display Configuration” for details.
REG[13h] bits 7-0 Screen 2 Start Address Bits [19:0]
REG[14h] bits 7-0 These registers form the 20-bit address for the starting word of the Screen 2 image in
REG[15h] bits 3-0 the display buffer.
Note that this is a word address.
A combination of this register and the Pixel Panning register (REG[18h]) can be used to uniquely
identify the start (top left) pixel within the Screen 2 image stored in the display buffer.
See “Display Configuration” for details.
Screen 1 Display Start Address Register 0
REG[10h] RW
Start Address
Bit 7 Start Address
Bit 6 Start Address
Bit 5 Start Address
Bit 4 Start Address
Bit 3 Start Address
Bit 2 Start Address
Bit 1 Start Address
Bit 0
Screen 1 Display Start Address Register 1
REG[11h] RW
Start Address
Bit 15 Start Address
Bit 14 Start Address
Bit 13 Start Address
Bit 12 Start Address
Bit 11 Start Address
Bit 10 Start Address
Bit 9 Start Address
Bit 8
Screen 1 Display Start Address Register 2
REG[12h] RW
n/a n/a n/a n/a Start Address
Bit 19 Start Address
Bit 18 Start Address
Bit 17 Start Address
Bit 16
Screen 2 Display Start Address Register 0
REG[13h] RW
Start Address
Bit 7 Start Address
Bit 6 Start Address
Bit 5 Start Address
Bit 4 Start Address
Bit 3 Start Address
Bit 2 Start Address
Bit 1 Start Address
Bit 0
Screen 2 Display Start Address Register 1
REG[14h] RW
Start Address
Bit 15 Start Address
Bit 14 Start Address
Bit 13 Start Address
Bit 12 Start Address
Bit 11 Start Address
Bit 10 Start Address
Bit 9 Start Address
Bit 8
Screen 2 Display Start Address Register 2
REG[15h] RW
n/a n/a n/a n/a Start Address
Bit 19 Start Address
Bit 18 Start Address
Bit 17 Start Address
Bit 16