ST7735
10.2.9 PWCTR4 (C3h): Power Control 4 (in Idle mode/ 8-colors)
C3H
PWCTR4 (Power Control 4)
Inst / Para
D/CX
WRX
RDX
D17-8 D7
D6
1
D5
0
D4
0
D3
0
D2
D1
D0
HEX
PWCTR4
1st parameter
2nd parameter 1
0
↑
↑
↑
1
1
1
-
-
-
1
0
0
0
1
1
(C3h)
1
0
0
0
0
APB2
APB1
APB0
DCB0
0
0
0
0
DCB2 DCB1
-Set the amount of current in Operational amplifier in Idle mode/8 colors.
-Adjust the amount of fixed current from the fixed current source in the operational amplifier for the source driver
.
AP[2:0]
000
Amount of Current in Operational Amplifier
00h Operation of the operational amplifier stops
01h Small
001
010
02h Medium Low
011
03h Medium
100
04h Medium High
101
05h Large
110
06h Reserved
111
07h Reserved
Description
-Set the Booster circuit Step-up cycle in Idle mode/8 colors
.
DC[2:0]
000
Step-up cycle in Booster circuit 1
00h BCLK / 1
Step-up cycle in Booster circuit 2,4
BCLK / 1
BCLK / 2
BCLK / 4
BCLK / 2
BCLK / 4
BCLK / 4
BCLK / 8
BCLK / 16
001
01h BCLK / 1
02h BCLK / 1
03h BCLK / 2
04h BCLK / 2
05h BCLK / 4
06h BCLK / 4
07h BCLK / 4
010
011
100
101
110
111
Note: BCLK is Clock frequency for Booster circuit
-If this register not using the register need be reserved.
Restriction
Status
Availability
Yes
Yes
Yes
Yes
Normal Mode On, Idle Mode Off, Sleep Out
Normal Mode On, Idle Mode On, Sleep Out
Partial Mode On, Idle Mode Off, Sleep Out
Partial Mode On, Idle Mode On, Sleep Out
Sleep In
Register
Availability
Yes
Status
Default Value
C3h
Default
Power On Sequence
S/W Reset
H/W Reset
02h/07h
02h/07h
02h/07h
V1.7
133
2009-12-04