tmp89fm42a TOSHIBA Semiconductor CORPORATION, tmp89fm42a Datasheet - Page 120

• Manufacturer Part Number: tmp89fm42a
• Description: 8 Bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

RA006
Table 8-2 List of I/O Port Settings
Note 1: After the power is turned on, pin P10 serves as an external reset input. To use pin P10 as a port, refer to "How to use the
Note 2: About SERSEL, please refer to "8.4 Serial Interface Selecting Function".
Note 3: The symbol and numeric characters in the table have the following meanings:
Port name
external reset input pin as a port".
Pin name
PB4
meric characters
Symbol and nu-
Without register
**
0
1
*
TXD0 output
RXD0 input
SO0 output
Function
The sink open drain output or the C-MOS output can be selec-
(Operation is the same whether "1" or "0" is selected.)
There is no register that corresponds to the bit.
Page 101
PxCR
1
0
1
Don’t care
Meaning
Set "0".
Set "1".
ted.
PxOUTCR
**
**
*
Register set value
PxFC
1
1
*
SERSEL<SRSEL0>="0*"
SERSEL<SRSEL2>="1"
UATCNG<UAT0IO>="0"
SERSEL<SRSEL0>="0*"
SERSEL<SRSEL2>="1"
UATCNG<UAT0IO>="1"
SERSEL<SRSEL0>="10"
SERSEL<SRSEL2>="1"
Other required settings
TMP89FM42A