W99681CF Datasheet, PDF (50/78 Pages) Winbond – JPEG USB Dual Mode Camera Chip

W99681CF
A 21-bit value specifies the WORD offset from the start of the frame buffer for the external
microcontroller access. This register contains 16 lower-order bits of the value. Bits 20-16
are located at CR0D_4-0.
uC Access DRAM Start Address High Register (CR0D)
Read/Write
Index: 000DH
uC Address: 1AH - 1BH
Power-on Default: XXXXH
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Reserved
R/W Reserved
uCA[20:16]
Bits 15-9 Reserved
Bit 8
uC Access DRAM Mode
0 = Read mode. uC reads data from DRAM.
1 = Write mode. uC writes data to DRAM.
Bits 7-5 Reserved
Bits 4-0 uCA[20:16]
uC Access DRAM Data Port Register (CR0E)
Read/Write
Index: 000EH
uC Address: 1CH - 1DH
Power-on Default: XXXXH
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
High Byte Data
Low Byte Data
Bits 15-8 High Byte Data
Bits 7-0 Low Byte Data
Vendor String Data Port Register (CR0F)
Write-only
Index: 000FH
uC Address: 1EH - 1FH
Power-on Default: XXXXH
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Vendor String Data Port
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