HT0324A Tomato LSI, Inc., HT0324A Datasheet - Page 42

• Manufacturer Part Number: HT0324A
• Description: 65COM / 132SEG DRIVER & CONTROLLER FOR STN LCD
• Manufacturer: Tomato LSI, Inc.

HT0324A
TOMATO LSI Inc.
SHL = 0: normal direction (COM0
SHL = 1: reverse direction (COM63
7-17. Power control
Selects one of eight power circuit functions by using 3-bit register. An external power supply and part of
internal power supply functions can be used simultaneously.
7-18. Regulator resistor select
Selects resistance ratio of the internal resistor used in the internal voltage regulator. See voltage regulator
section in power supply circuit. Refer to the table 6-9.
RS
RS
VC
0
1
R2
0
0
0
0
1
1
1
1
0
0
RW
RW
VR
0
1
R1
0
0
1
1
0
0
1
1
0
0
65COM / 132SEG DRIVER & CONTROLLER FOR STN LCD
DB7
DB7
VF
0
1
R0
0
1
0
1
0
1
0
1
0
0
42
DB6
DB6
0
0
COM63)
COM0)
DB5
DB5
1
1
Internal power supply circuits status
Voltage converter circuit is OFF
Voltage regulator circuit is OFF
Voltage converter circuit is ON
Voltage regulator circuit is ON
Voltage follower circuit is OFF
Voltage Follower circuit is ON
DB4
DB4
0
0
(1 + Rb / Ra ) ratio
5.0 (default)
DB3
DB3
3.0
3.5
4.0
4.5
5.5
6.0
6.4
1
0
DB2
DB2
VC
R2
Ver 0.0
X : Don’t care
DB1
DB1
VR
R1
DB0
DB0
VF
R0