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Chapter 11 Serial Interface 0, 1
XI - 56
Operation
11-3-7 Serial interface 1 UART Serial Interface Pin Setup
Serial Interface 1 Pin Setup (1, 2 channels, at transmission)
Table 11-3-29 shows the pins setup at UART serial interface 1 transmission. The pins setup is common
to the TXD1 pin, RXD1 pin, regardless of those pins are independent / connected.
Serial Interface 1 Pin Setup (2 channels, at reception)
Table 11-3-30 shows the pins setup at UART serial interface 1 reception with 2 channels (TXD1 pin,
RXD1 pin).
Table 11-3-30 UART Serial Interface 1 Pin Setup (2 channels, at reception)
Table 11-3-29 UART Serial Interface 1 Pin Setup (1, 2 channels, at transmission)
Data output pin Data input pin
TXD1A pin/ RXD1A pin/
TXD1B pin RXD1B pin
Port Pin P00/P73 P01/P74
Serial data output "1" input
SC0MD1(SC0SBOS) SC0MD1(SC0SBIS)
Push-pull /
Nch open-drain
SC1ODC (SC1ODC0)
SC1ODC (SC1ODC2)
Output mode
P0DIR (P0DIR0)
P7DIR (P7DIR3)
Add/Not Add
P0PLU (P0PLU0)
P7PLUD(P7PLUD3)
Note) Select pull-up/down resistor with P7RDOWN flag of FLOAT register (x'03F2E')
[ Chapter4, 4.7.2 Register ]
-
-
I/O
Pull-up (Pull-down) setup
Style -
Setup item
Port Pin Setup
TXD / RXD pin Setup
Function
SC1ODC (SC1SEL)
Select used pin (A, B)
TXD0/RXD0 pin independent/connection
SC0MD1 (SC0IOM)
Data output pin Data input pin
TXD1A pin/ RXD1A pin/
TXD1B pin RXD1B pin
Port Pin P00/P73 P01/P74
Serial data output "1" input
SC0MD1(SC0SBOS) SC0MD1(SC0SBIS)
input mode
P0DIR (P0DIR1)
P7DIR (P7DIR4)
TXD / RXD pin Setup
TXD0/RXD0 pin independent/connection
SC0MD1 (SC0IOM)
Function
Setup item
Port Pin Setup
Select used pin (A, B)
SC1DC (SC1SEL)
-
I/O
Pull-up (Pull-down) setup -
Style -
-
-