IPC/RSL8xxx-XxxxE: user documentation
DOC/IPC_RSL8-E; V1.9
© Syslogic Datentechnik AG, Switzerland, http://www.syslogic.com
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Configuration Switch Input Register 820Ch
D7
D6
D5
D4
D3
D2
D1
D0
Access
0
0
0
0
S1-D3
S1-D2
S1-D1
S1-D0
Read
reserved
Write
x
xxx’xx
xx (0xXX)
Reset
Description:
D3-0
Configuration Switch S1 Inputs
Read
Write
S1 state (0-F)
D7-4
Configuration Switch Inputs
Read
Write
0 (reserved)
Reserved
reserved, do not write
PWM Register 820Dh for LCD Inverter Brightness Control
D7
D6
D5
D4
D3
D2
D1
D0
Access
PWM preset D[7..0]
Read
PWM preset D[7..0]
Write
FFh
Reset
Description:
D[7..0]
PWM Preset Register
Read
Write
D[7..0] = Preset Value
D[7..0] = Preset Value
The PWM value, may be translated to a voltage depending on setting of
configuration switch S5. Value 0 corresponds to voltage level 0, value FFh
corresponds to maximum voltage level (2.5V or 5V). Signal may be inverted by
setting of switch S1 (see Tab. 2).
Please check inverter datasheet for translation of voltage level to brightness.
