RL78/F13, F14 CHAPTER 15 SERIAL ARRAY UNIT
R01UH0368EJ0210 Rev.2.10 962
Dec 10, 2015
Figure 15-121. Example of Contents of Registers for UART Transmission of UART
(UART0, UART1) (2/2)
(e) Serial output register m (SOm) … Sets only the bits of the target channel.
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
SOm
0
0
0
0
0
0
CKOm1
×
CKOm0
×
0
0
0
0
0
0
SOm1
×
SOm0
0/1
Note
0: Serial data output value is 0
1: Serial data output value is 1
(f) Serial output enable register m (SOEm) … Sets only the bits of the target channel to 1.
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
SOEm
0
0
0
0
0
0
0
0
0
0
0
0
0
0
SOEm1
×
SOEm0
0/1
(g) Serial channel start register m (SSm) … Sets only the bits of the target channel to 1.
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
SSm
0
0
0
0
0
0
0
0
0
0
0
0
0
0
SSm1
×
SSm0
0/1
Note Before transmission is started, be sure to set to 1 when the SOLmn bit of the target channel is set to 0, and
set to 0 when the SOLmn bit of the target channel is set to 1. The value varies depending on the
communication data during communication operation.
Remarks 1. m: Unit number (m = 0, 1), n: Channel number (n = 0), mn = 00, 10
2. : Setting disabled (set to the initial value)
×: Bit that cannot be used in this mode (set to the initial value when not used in any mode)
0/1: Set to 0 or 1 depending on the usage of the user
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