tmp86fh46bng TOSHIBA Semiconductor CORPORATION, tmp86fh46bng Datasheet - Page 127

• Manufacturer Part Number: tmp86fh46bng
• Description: 8 Bit Microcontroller Tlcs-870/c Series
• Manufacturer: TOSHIBA Semiconductor CORPORATION

SIOCR1<SIOS>
SIOSR<SIOF>
SIOSR<SEF>
SCK
SO pin
SIOSR<TXF>
INTSIO
interrupt
request
SIOTDB <SIOS>
pin
(4)
Figure 10-7 Example of External Clock and MSB Transmit Mode
Writing transmit
data A
SCK
SIOSR<SIOF>
SO pin
Transmit errors occur on the following situation.
pin
Transmit error processing
・ Shift operation starts before writing next transmit data to SIOTDB in external clock operation.
Figure 10-8 Hold Time of the End of Transmit Mode
A
ately after starting shift operation. Synchronizing with the next serial clock falling edge, IN-
TSIO interrupt request is generated. If shift operation starts before writing data to SIOTDB
after SIOCR1<SIOS> is set to “1”, SIOSR<TXERR> is set to “1” immediately after shift op-
eration is started and then INTSIO interrupt request is generated.
curs, transmit operation must be forcibly stop by writing SIOCR1<SIOINH> to “1”. In
this case, SIOCR1<SIOS>, SIOSR register, SIORDB register and SIOTDB register are ini-
tialized.
If transmit errors occur during transmit operation, SIOSR<TXERR> is set to “1” immedi-
SIO pin is kept in high level when SIOSR<TXERR> is set to “1”. When transmit error oc-
A7 A6
Writing transmit
data B
Start shift
operation
A5 A4 A3 A2 A1 A0 B7 B6 B5 B4 B3 B2 B1 B0 C7 C6 C5 C4 C3 C2 C1 C0
B
Page 109
Writing transmit data
Start shift
operation
Writing transmit
data C
C
4/fc
<
t SODH
t SODH
Start shift
operation
Clearing SIOS
<
8/fc
TMP86FH46BNG