HD66765 Datasheet, PDF (47/71 Pages) Hitachi Semiconductor – 396-channel Segment Driver with Internal RAM for 4096-color Displays

HD66765
Microcomputer
16
Read-data latch
Write-data latch
+1/-1 +256
12
12
12
Address
Logical/Compare operation (LG2—0:)
3
Logical operation bit
counter
000: replacement, 001: OR, 010: AND, 011: EOR,
(LG2—0)
(AC)
ification ¹⁶
100: replacement with matched read, 101: replacement
with unmatched read, 110: replacement with matched
write, 111: replacement with unmatched write
12
Write bit mask
Graphics RAM (GRAM)
12
Compare bit (CP11—0)
12
Write-mask register
(WM11—0)
Preliminary ^{Spec Figure 34 Data Processing Flow of the Graphics Operation}
47