UPD161622 NEC, UPD161622 Datasheet - Page 28

• Manufacturer Part Number: UPD161622
• Description: 396 OUTPUT TFT-LCD SOURCE DRIVER
• Manufacturer: NEC

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28
Figure 5 12. Example of Sequence in High-Speed RAM Write Mode (with 16-Bit Parallel Interface)
Note Do not specify any value other than the address value 4n n (n = 1 to 33) for the X address (R6) in the
high-speed RAM access mode. The operation is not guaranteed if invalid address data is set.
n: n
High speed RAM write mode setting
X address setting register (R6)
Y address setting register (R7)
Display memory register (R12)
1
(R5: BSTR[D6] = 1)
display data (16 bit)
display data (16 bit)
display data (16 bit)
display data (16 bit)
1st word (4n − 4)
2nd word (4n − 3)
Next processing
3rd word (4n − 2)
4th word (4n − 1)
End of data
End
Start
Yes
Data Sheet S15649EJ2V0DS
Note
Sets the high-speed RAM write mode.
No
Data write sequence
(writing data in 64-bit units)
PD161622