STFPC320 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
STFPC320
STMicroelectronics
STFPC320 Datasheet PDF : 78 Pages
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Commands
7.3
Display control and hotkey setting command
STFPC320
MSB
1
0
LSB
b5
b4
b3
b2
b1
b0
Description:
Bits b7-b6 = 10 is decoded as a display control and hotkey setting command. The
subsequent bits are decoded as follows:
b5 = 0: sets display control for dimming setting as shown in the table on the next
page.
When b5 = 1, the decoding is based on bits b2-b0 as illustrated below:
b2 b1 b0 = XX1: RC hotkeys and address configuration.
b2 b1 b0 = X1X: front panel hotkeys configuration.
b2 b1 b0 = 1XX: sets the RTC segments location. Refer to the table below for the
configuration.
b4, b3: reserved (the bits can be set to ‘0’)
Note:
XXX on the bit values means don’t care. The bits can be set to ‘0’.
RTC segments configuration Remote control hotkeys
When b5 = 0
b2.b0: Sets dimming quantity.
000: Sets pulse width to 1/16.
001: Sets pulse width to 2/16.
010: Sets pulse width to 4/16.
011: Sets pulse width to 10/16.
100: Sets pulse width to 11/16.
101: Sets pulse width to 12/16.
110: Sets pulse width to 13/16.
111: Sets pulse width to 14/16.
b3: Turns on/off display
0: Display off (key scan
continues)
1: Display on
When b5 = 1
b2 b1 b0: 1XX
This command is followed by
sending 7 bytes of configuration
data for RTC segments (byte1-
6) and format configuration
(byte7).
When b5 = 1
b2 b1 b0: XX1
Following this command is
16bytes configuration data for 8
RC hotkeys configuration.
Read 12.3.3 for details.
Front panel hotkeys
Read 12.3.1 for details.
When b5 = 1
b2 b1 b0: X1X
This command is followed by
sending 3 bytes (24 keys) of
configuration data to set any key
as hotkey.
Read Section : Thus, if the a
segment is located on
segment 1, the bits b3-b0 are
“0000”. If b segment is
located on segment 2, the
bits b3-b0 are “0001” and so
on. on page 39 for details.
MSB
Segment b
Segment a
LSB
BYTE1
b7
b6
b5
b4
b3
b2
b1
b0
38/78
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