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Table 11-9. Relationship between register settings and pins (Channel 2 of unit 1: UART3 transmission)
SE12
MD122
MD121
Note1
0
0
1
1
0
1
Notes 1. The SE1 register is a read-only status register which is set using the SS1 and ST1 registers.
2. This pin can be set as a port function pin.
3. This is 0 or 1, depending on the communication operation. For details, refer to 11.3 (12) Serial output
register m (SOm).
4. When using UART3 transmission and reception in a pair, set channel 3 of unit 1 to UART3 reception (refer
to Table 11-10).
Remark X: Don't care
Table 11-10. Relationship between register settings and pins (Channel 3 of unit 1: UART3 reception)
Note1
SE13
MD132
0
0
1
0
Notes 1. The SE1 register is a read-only status register which is set using the SS1 and ST1 registers.
2. This pin can be set as a port function pin.
3. When using UART3 transmission and reception in a pair, set channel 2 of unit 1 to UART3 transmission
(refer to Table 11-9).
4. The SMR12 register of channel 2 of unit 1 must also be set during UART3 reception. For details, refer to
11.6.2 (1) Register setting.
Remark X: Don't care
472
CHAPTER 11 SERIAL ARRAY UNIT
SOE12
SO12
TXE12
0
1
0
Note3
0/1
1
1
MD131
TXE13
RXE13
1
0
0
1
0
1
User's Manual U17854EJ9V0UD
RXE12
PM13
P13
×
×
0
Note2
Note2
0
0
1
PM14
P14
Note2
Note2
×
×
×
1
Operation
Pin Function
mode
TxD3/P13
Operation
P13
stop mode
UART3
TxD3
transmission
Note4
Operation
Pin Function
mode
RxD3/P14
Operation
P14
stop
mode
UART3
RxD3
reception
Note3, 4
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