Epson S1D13504 manual Screen 2 Display Start Address Register 0 RW, Memory Address Offset Register

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Screen 2 Display Start Address Register 0 RW
REG[13h]								RW
Start Address	Start Address		Start Address	Start Address	Start Address	Start Address	Start Address	Start Address
Bit 7	Bit 6		Bit 5	Bit 4	Bit 3	Bit 2	Bit 1	Bit 0
Screen 2 Display Start Address Register 1
REG[14h]								RW
Start Address	Start Address		Start Address	Start Address	Start Address	Start Address	Start Address	Start Address
Bit 15	Bit 14		Bit 13	Bit 12	Bit 11	Bit 10	Bit 9	Bit 8
Screen 2 Display Start Address Register 2
REG[15h]								RW
n/a	n/a		n/a	n/a	Start Address	Start Address	Start Address	Start Address
					Bit 19	Bit 18	Bit 17	Bit 16
REG[13h] bits 7-0		Screen 2 Start Address Bits [19:0]
REG[14h] bits 7-0		This register forms the 20-bit address for the starting word of the screen 2 image in the display
REG[15h] bits 3-0		buffer. Note that this is a word address. An entry of 0000h into these registers represents the first
		word of display memory, an entry of 0001h represents the second word of display memory, and so
		on. See Section 10, “Display Configuration” on page 116 for details.
Memory Address Offset Register 0
REG[16h]								RW
Memory	Memory		Memory	Memory	Memory	Memory	Memory	Memory
Address	Address		Address	Address	Address	Address	Address	Address
Offset Bit 7	Offset Bit 6		Offset Bit 5	Offset Bit 4	Offset Bit 3	Offset Bit 2	Offset Bit 1	Offset Bit 0
Memory Address Offset Register 1
REG[17h]								RW
							Memory	Memory
n/a	n/a		n/a	n/a	n/a	n/a	Address	Address
							Offset Bit 9	Offset Bit 8
REG[16] bits 7-0		Memory Address Offset Bits [9:0]
REG[17] bits 1-0		These bits are the 10-bit address offset from the starting word of line “n” to the starting word of line
		“n + 1”. This value is applied to both screen 1 and screen 2.

Note

This value is in words and must be programmed ≥ REG[04h].

A virtual image can be formed by setting this register to a value greater than the width of the dis- play. The displayed image is a window into the larger virtual image.

See Section 10, “Display Configuration” on page 116 for details.

S1D13504	Hardware Functional Specification
X19A-A-002-18	Issue Date: 01/01/30