Xi - 56 – Panasonic MN101C77C User Manual

Page 382

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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)