HD66789 Datasheet, PDF (104/156 Pages) Renesas Technology Corp – 528-channel, One-chip Driver for Amorphous TFT Panels with 262,144-color display RAM, Power Supply Circuit, and Gate Circuit

HD66789
Preliminary
Writing data in the horizontal direction
AM = 0, ID0 = 1
Window address range setting
HSA = h12, HEA = h30
VSA = h08, VEA = hA0
High-speed RAM write mode setting
HWM = 1
Address set
AD = h0810 *^Note
Dummy RAM write X 2
RAM write X 31
h0000
h0812
GRAM address map
X 153
Specified window address
range (rewrite area)
hA030
Window address range setting
HAS = h12, HEA = h30
VSA = h08, VEA = hA0
hEFAF
Dummy RAM write X 3
Note: In the high-speed RAM write mode, the address set must be either 00 or 11
in ID0 bit setting. Only the RAM address range specified by window addresses
will be overwritten.
High-Speed RAM Write with Window Address Function
Rev.0.12, May 09 2003, page 104 of 156