tmp89fm42a TOSHIBA Semiconductor CORPORATION, tmp89fm42a Datasheet - Page 269

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

17.1
Configuration
RA001
17.1
Internal clock
Note:The serial interface input/output pins are also used as the I/O ports. The I/O port register settings are required
Configuration
to use these pins for a serial interface. For details, refer to the chapter of I/O ports.
SIO0CR
Control circuit
SIO0SR
Figure 17-1 Serial Interface
Shift clock
MSB/LSB selection
Internal bus
Page 250
Internal bus
Shift register on transmitter
Shift register on receiver
SIO0BUF
SIO0BUF
INTSIO0
interrupt request
(Note)
(Note)
(Note)
Port
Port
Port
TMP89FM42A
SO0 pin
SI0 pin
SCLK0 pin