HD66765 Datasheet, PDF (15/71 Pages) Hitachi Semiconductor – 396-channel Segment Driver with Internal RAM for 4096-color Displays

HD66765
Instruction Descriptions
Index
The index instruction specifies the RAM control indexes (R00h to R37h). It sets the register number in
the range of 00000 to 110111 in binary form. However, R40 to R44 are disabled since they are test
registers.
R/W RS
n ^{W 0}
DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1
*
*
*
*
*
*
*
*
* ID6 ID5 ID4 ID3 ID2 ID1
tio _{Figure 1 Index Instruction}
ifica ^{Status Read}
c ^{The status read instruction reads the internal status of the HD66765.}
e _{L7–0: Indicate the driving raster-row position where the liquid crystal display is being driven.}
Sp _{C6–0: Read the contrast setting values (CT6–0).}
ry _{R/W RS}
a _{R 0}
DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1
L7 L6 L5 L4 L3 L2 L1 L0 0 C6 C5 C4 C3 C2 C1
limin^{Figure 2 Status Read Instruction}
Pre ^{Start Oscillation (R00h)}
DB0
ID0
DB0
C0
The start oscillation instruction restarts the oscillator from the halt state in the standby mode. After
issuing this instruction, wait at least 10 ms for oscillation to stabilize before issuing the next instruction.
(See the Standby Mode section.)
If this register is read forcibly, *765H is read.
R/W RS
W1
DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
1
R1
0000011101100101
Figure 3 Start Oscillation Instruction
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