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| UPD78F0411GA-GAM-AX Datasheet, PDF (357/564 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents | |||
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CHAPTER 14 SERIAL INTERFACE UART6
The relationship between the register settings and pins is shown below.
Table 14-2. Relationship Between Register Settings and Pins
(a) When the P12 and P13 are selected as the UART6 pins using the bits 4, 5 (ISC4, ISC5) of the ISC register
POWER6 TXE6 RXE6 PM13 P13 PM12 P12
UART6
Pin Function
Operation TXD6/KR4/TxD0/P13RXD6/KR3/RxD0/P12
0
0
0
ÃNote
ÃNote
ÃNote
ÃNote
Stop
KR4/TxD0/P13
KR3/RxD0/P12
1
0
1
ÃNote
ÃNote
1
Ã
Reception
KR4/P13
RXD6
1
0
0
Ã
ÃNote
ÃNote Transmission
TXD6
KR3/P12
1
1
0
Ã
1
Ã
Transmission/
TXD6
reception
RXD6
Note Can be set as port function, key interrupt, or serial interface UART0 (only when UART6 is stopped).
Caution TxD6/SEG6/P112 and RxD6/SEG7/P113 pins function as the SEG6/P112 and SEG7/P113.
Remark
Ã:
donât care
POWER6: Bit 7 of asynchronous serial interface operation mode register 6 (ASIM6)
TXE6: Bit 6 of ASIM6
RXE6: Bit 5 of ASIM6
PM1Ã: Port mode register
P1Ã:
Port output latch
(b) When the P112 and P113 are selected as the UART6 pins using the bits 4, 5 (ISC4, ISC5) of the ISC register
POWER6 TXE6 RXE6 PM112 P112 PM113 P113
UART6
Operation
Pin Function
TXD6/SEG6/P112 RXD6/SEG7/P113
0
0
0
ÃNote
ÃNote
ÃNote
ÃNote
Stop
SEG6/P112
SEG7/P113
1
0
1
ÃNote
ÃNote
1
Ã
Reception
SEG6/P112
RXD6
1
0
0
1
ÃNote
ÃNote Transmission
TXD6
SEG7/P113
1
1
0
1
1
Ã
Transmission/
TXD6
reception
RXD6
Note Can be set as port function or segment output.
Caution TxD6/KR4/TxD0/P13 and RxD6/KR3/RxD0/P12 pins function as the KR4/TxD0/P13 and
KR3/RxD0/P12.
Remark
Ã:
donât care
POWER6: Bit 7 of asynchronous serial interface operation mode register 6 (ASIM6)
TXE6: Bit 6 of ASIM6
RXE6: Bit 5 of ASIM6
PM11Ã: Port mode register
P11Ã: Port output latch
Userâs Manual U18698EJ1V0UD
355
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