Serial Output Enable Register M (Soem) - Renesas RL78/G1P Hardware User Manual

RL78/G1P

11.3.11 Serial output enable register m (SOEm)

The SOEm register is a register that is used to enable or stop output of the serial communication operation of each
channel.
Channel n that enables serial output cannot rewrite by software the value of the SOmn bit of serial output register m
(SOm) to be described below, and a value reflected by a communication operation is output from the serial data output pin.
For channel n, whose serial output is stopped, the SOmn bit value of the SOm register can be set by software, and that
value can be output from the serial data output pin. In this way, any waveform of the start condition and stop condition can
be created by software.
The SOEm register can be set by a 16-bit memory manipulation instruction.
The lower 8 bits of the SOEm register can be set with a 1-bit or 8-bit memory manipulation instruction with SOEmL.
Reset signal generation clears the SOEm register to 0000H.
Address: F012AH, F012BH
Symbol 15 14
SOE0 0 0
SOE
mn
0 Stops output by serial communication operation.
1 Enables output by serial communication operation.
Caution Be sure to clear bits 15 to 1 to "0".
Remark m: Unit number (m = 0), n: Channel number (n = 0)
R01UH0895EJ0100 Rev.1.00
Nov 29, 2019
Figure 11-13. Format of Serial Output Enable Register m (SOEm)
After reset: 0000H R/W
13 12 11 10
0 0 0 0
Serial output enable/stop of channel n
CHAPTER 11 SERIAL ARRAY UNIT
9 8 7 6
0 0 0 0
5 4 3 2
0 0 0 0
1 0
0 SOE
00
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