Panasonic F77G User Manual page 383

Serial Interface 1 Pin Setup (1 channel, at reception)
Table 11-3-31 shows the pin setup at UART serial interface reception with 1 channel (TXD1 pin). The
RXD1 pin is not used, so can be used as a port.
Table 11-3-31
Serial Interface 1 Pin Setup (2 channels, at transmission / reception)
Table 11-3-32 shows the pin setup at UART serial interface 1 transmission / reception with 2 channels
(TXD1 pin, RXD1).
Table 11-3-32 UART Serial Interface 1 Pin Setup (2 channels, at transmission / reception)
UART Serial Interface 1 Pin Setup (1 channel, at reception)
Setup item
Port Pin
Port Pin Setup
TXD / RXD pin Setup
Serial data output
Function
SC0MD1(SC0SBOS)
Style
I/O
Pull-up (Pull-down) setup
Note) Select pull-up/down resistor with P7RDOWN flag of FLOAT register (x'03F2E')
[ Chapter4, 4.7.2 Register ]
Setup item
Port Pin
Port Pin Setup
TXD / RXD pin Setup
Serial data output
Function
SC0MD1(SC0SBOS)
Style
SC1ODC (SC1ODC0)
SC1ODC (SC1ODC2)
I/O
P0DIR (P0DIR0)
P7DIR (P7DIR3)
Pull-up (Pull-down) setup
P0PLU (P0PLU0)
P7PLUD(P7PLUD3)
Data output pin Data input pin
TXD1A pin/ RXD1A pin/
TXD1B pin RXD1B pin
P00/P73 P01/P74
Select used pin (A, B)
SC1ODC (SC1SEL)
TXD0/RXD0 pin independent/connection
SC0MD1 (SC0IOM)
"1" input
SC0MD1(SC0SBIS)
- -
Output mode
-
P0DIR (P0DIR0)
P7DIR (P7DIR3)
- -
Data output pin Data input pin
TXD1A pin/ RXD1A pin/
TXD1B pin RXD1B pin
P00/P73 P01/P74
Select used pin (A, B)
SC1DC (SC1SEL)
TXD0/RXD0 pin independent/connection
SC0MD1 (SC0IOM)
"1" input
SC0MD1(SC0SBIS)
Push-pull /
Nch open-drain
-
Output mode input mode
P0DIR (P0DIR1)
P7DIR (P7DIR4)
Add/Not Add
-
Chapter 11 Serial Interface 0, 1
XI - 57
Operation