PCA8538UG(2014) View Datasheet(PDF) - NXP Semiconductors.
Part Name
Description
MFG CO.
PCA8538UG Datasheet PDF : 107 Pages
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8. Functional description
8.1 Commands of PCA8538
The PCA8538 is controlled by the commands defined in Table 5.
Remark: Any other combinations of operation code bits that are not mentioned in this document may lead to undesired
operation modes of PCA8538.
Table 5. Commands of PCA8538
Command name
R/W[1]
Register
selection
RS[1:0][2]
General control commands
Initialize
0
0
0
OTP-refresh
0
0
0
Device-address
0
0
0
SYNC1_pin
0
0
0
Clock-out-ctrl
0
0
0
Read-select
0
0
0
Status-readout temperature 1
0
0
device status
Clear-reset-flag
0
0
0
Charge pump and LCD bias control commands
Charge-pump-ctrl
0
0
0
Set-VLCD
MSB
LSB
0
0
0
0
0
0
Set-bias-mode
0
0
0
Command bits
Reference
7
6
5
4
3
2
1
0
0
0
1
1
1
0
1
1
0
1
1
0
0
0
0
1
1
0
1
0
1
1
1
0
1
1
0
1
0
1
0
0
0
1
1
1
TD[7:0]
SR7 SR6 SR5 SR4 SR[3:0]
0
0
0
1
1
1
1
0
A[1:0]
0
0
0
0
0
OE
COE
SO
Section 8.2.1
Section 8.2.2
Section 8.2.3
Section 8.2.4
Section 8.2.5
Section 8.2.6
Section 8.2.7
1
1
Section 8.2.8
1
1
0
0
CPE CPC[2:0]
0
1
0
V[8:4]
0
1
1
0
V[3:0]
1
1
0
1
0
0
B[1:0]
Section 8.3.1
Section 8.3.2
Section 8.3.3
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