tmp89fm42a TOSHIBA Semiconductor CORPORATION, tmp89fm42a Datasheet - Page 278

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

RA001
SIO0CR<SIOS>
SIO0CR<SIOM>
SIO0SR<SIOF>
SIO0SR<SEF>
SIO0SR<TBFL>
Internal clock
SO0 pin (output)
SCLK0 pin (output)
INTSIO0 interrupt request
SIO0BUF
Write to SIO0BUF
SIO0CR<SIOS>
SIO0CR<SIOM>
SIO0SR<SIOF>
SIO0SR<SEF>
SIO0SR<TBFL>
Internal clock
SO0 pin (output)
SCLK0 pin (output)
INTSIO0 interrupt request
SIO0BUF
Write to SIO0BUF
Figure 17-4 8-bit Transmit Mode (Internal Clock and Reserved Stop)
Figure 17-5 8-bit Transmit Mode (Internal Clock and Forced Stop)
Writing data A
Writing data A
Start operation
Start operation
A
A
Bit0 Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7 Bit0 Bit1 Bit2
Bit0 Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7 Bit0 Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7
Writing data B
Writing data B
Data A
Data A
B
B
01
Writing data C
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Data B
C
The level is held for the period
Forced stop
of the internal clock×(1/2)
Data B
01
Data is not held but
becomes the H level
Clock output is stopped
00
Automatic wait
Start operation
Writing data C
Reserved stop
C
Bit0 Bit1 Bit2 Bit3 Bit4 Bit5
Bit0 Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7
Writing data D
Reserved stop
01
Data C
An interrupt is generated
D
case of reserved stop
Data C
after transmission in
Forced stop has priority
over reserved stop
TMP89FM42A
Forced stop
00