tmp89ch42 TOSHIBA Semiconductor CORPORATION, tmp89ch42 Datasheet - Page 135

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

RA007
8.4
assignment can be changed. Two out of three functions, SIO0, UART0 and I2C0, can be used at the same time by
using this selecting function.
Serial Interface Selecting Function
On the TMP89CH42, the built-in serial interface (SIO, UART and I
The input pins of the 16-bit timer counter A0 input (TCA0 input) can be changed by using this selecting function.
UART1
UART0
TCA0
SIO0
I2C0
Figure 8-11 Serial Interface Selecting Function
SERSEL<SRSEL0>
Selector
Selector
10
01
0*
*0
S
S
SERSEL<TCA0SEL>
<SRSEL2>
SERSEL
Selector
Selector
S
S
Page 121
00
01
10
1
0
P91 (RXD1)
P21 (RXD0)
Port
Port
Port
Port
Port
2
C) communication pins and interrupt source
P90 (TXD1)
P91 (RXD1)
PB4 (TXD0 / SO0)
PB5 (RXD0 / SI0)
PB6 (SCLK0)
P20 (TXD0 / SO0)
P21 (RXD0 / SI0)
P22 (SCLK0)
P23 (SDA0 / SO0)
P24 (SCL0 / SI0)
P25 (SCLK0)
P72 (TCA0)
TMP89CH42