STFPC320 STMicroelectronics, STFPC320 Datasheet - Page 38

• Manufacturer Part Number: STFPC320
• Description: Front Panel Controller/driver With Standby Power Management And Real-time Clock
• Manufacturer: STMicroelectronics

Commands
Note:
7.4
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If less than 8 RC hotkeys are required, there is no need to fill all the 16 bytes. The number of
configuration bytes sent will depends on how many hotkeys.
For example, to configure 2 hotkeys from 2 different RC addresses for Philips RC-5 protocol:
Philips RC-5 Device Address: XXX00001, Hot Key 1: XX000001
Philips RC-5 Device Address: XXX01100, Hot Key 2 : XX000010
For RC protocols, where the MSB does not end on the 8-bit, the data is configured starting
from b0 (LSB) to the MSB.
Example for device configuration
After the proper power-up sequence, an example for configuration of the STFPC320 is given
below:
1.
2.
3.
4.
Configuring Display & RC
0x09 = RTC display & enables the guard timer to issue STBY
0xAA = Raw format, RC-5 protocol, 10s for initial guard time value
0x0A = Digit 1 will show the Hour MSB, 11 digits/17 segments display
Configure RTC Segments
0xA4 = Display control command with RTC segments configuration
0x10, 0x32, 0x54, 0x76, 0xAB, 0xEE = 6 bytes used to map the segment locations for
RTC
0x20 = Format of RTC (separator a part of same digit, HH: MM: SS format with no
AM/PM)
Configure Front Panel Keys as Wake-up keys (Hotkeys)
0xA2 = Hotkey setting command for front panel keys. Subsequent 3 bytes are used to
configure the desired front panel keys to be wake-up keys as described in Section
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
Configure RC Keys as Wake-up keys (Hotkeys)
0xA1 = Hotkey setting command for RC keys. For one hot key configuration from one
RC Device Address, 2 bytes are sent (1st byte is RC address and 2 byte is hotkey
command as described in
byte15, byte16 : RC hotkey8
Section : on page
37.
STFPC320
37.