
ST7735R
V0.2
136
2009-08-05
10.2.8 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
D5
D4
D3
D2
D1
D0
HEX
PWCTR4
0
↑
1
-
1
1
0
0
0
0
1
1
(C3h)
1
st
parameter
1
↑
1
-
DCB9
DCB8
SAPB2 SAPB1 SAPB0
APB2
APB1
APB0
2
nd
parameter
1
↑
1
-
DCB7
DCB6
DCB5
DCB4
DCB3
DCB2
DCB1
DCB0
Description
-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]
Amount of Current in Operational Amplifier
000
Operation of the operational amplifier stops
001
Small
010
Medium Low
011
Medium
100
Medium High
101
Large
110
Reserved
111
Reserved
SAP[2:0]
Amount of Current in Operational Amplifier
000
Operation of the operational amplifier stops
001
Small
010
Medium Low
011
Medium
100
Medium High
101
Large
110
Reserved
111
Reserved
-Set the Booster circuit Step-up cycle in Idle mode/8 colors.
DCB[9:8]
DCB[7:6]
DCB[5:4]
DCB[3:2]
DCB[1:0]
00
BCLK/1
BCLK/1
BCLK/1
BCLK/1
BCLK/1
01
BCLK/1.5
BCLK/1.5
BCLK/1.5
BCLK/1.5
BCLK/1.5
10
BCLK/2
BCLK/2
BCLK/2
BCLK/2
BCLK/2
11
BCLK/4
BCLK/4
BCLK/4
BCLK/4
BCLK/4
Note: BCLK is Clock frequency for Booster circuit
Register
Availability
Status
Availability
Normal Mode On, Idle Mode Off, Sleep Out
Yes
Normal Mode On, Idle Mode On, Sleep Out
Yes
Partial Mode On, Idle Mode Off, Sleep Out
Yes
Partial Mode On, Idle Mode On, Sleep Out
Yes
Sleep In
Yes
Default
Status
Default Value
C3h
Power On Sequence
8Ah/2Eh
S/W Reset
8Ah/2Eh
H/W Reset
8Ah/2Eh
Summary of Contents for ST7735R
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