tmp89ch42 TOSHIBA Semiconductor CORPORATION, tmp89ch42 Datasheet - Page 117

• Manufacturer Part Number: tmp89ch42
• Description: 8 Bit Microcontroller Tlcs-870/c1 Series
• Manufacturer: TOSHIBA Semiconductor CORPORATION

RA007
8.3.3
used as the serial bus interface input/output, the serial interface input/output, the UART input/output and the on-
chip debug function.
MOS output can be selected. Port P2 contains a programmable pull-up resistor on the VDD side. This pull-up
resistor can be used when the port is used in the input mode or as a sink open drain output.
selecting function is also needed. For details, refer to "8.4 Serial Interface Selecting Function".
Port P2 (P27 to P20)
Port P2 is an 8-bit input/output port that can be set to input or output for each bit individually, and it is also
The output circuit has the P-channel output control function and either the sink open drain output or the C-
When this port is used as the serial bus interface, the serial interface or the UART, setting for serial interface
Table 8-8 Port P2
Secondary
function
P27
-
P26
-
SCLK0
P25
Page 103
SCL0
P24
SI0
SDA0
SO0
P23
SCLK0
P22
RXD0
TXD0
P21
SI0
TXD0
RXD0
SO0
P20
TMP89CH42