tmp86ch47ug TOSHIBA Semiconductor CORPORATION, tmp86ch47ug Datasheet - Page 111

• Manufacturer Part Number: tmp86ch47ug
• Description: 8 Bit Microcontroller Tlcs-870/c Series
• Manufacturer: TOSHIBA Semiconductor CORPORATION

SIOCR1<SIOS>
SCK
SO pin
INTSIO
interrupt
request
SIORDB
SIOSR<SIOF>
SIOSR<SEF>
SI pin
SIOSR<TXF>
SIOSR<TXERR>
SIOTDB
SIOSR<RXF>
SIOCR1<SIOINH>
pin output
Figure 9-15 Example of Transmit/Receive (Transmit) Error Processing
Writing transmit
data A
(b) Receive errors
contents, the received data is ignored while the SIOSR<RXERR> is “1”.
A
Receive errors occur on the following situation. To protect SIORDB and the shift register
• Shift operation is finished before reading out received data from SIORDB at
A7 A6
D7 D6 D5 D4 D3 D2 D1 D0 E7 E6 E5 E4 E3 E2 E1 E0 F7 F6 F5 F4 F3 F2 F1 F0
SIOSR<RXF> is “1” in an external clock operation.
If receive error occurs, set the SIOCR1<SIOS> to “0” for reading the data that received
immediately before error occurence. And read the data from SIORDB. Data in shift reg-
ister (at errors occur) can be read by reading the SIORDB again.
When SIOSR<RXERR> is cleared to “0” after reading the received data, SIOSR<RXF>
is cleared to “0”.
After clearing SIOCR1<SIOS> to “0”, when 8-bit serial clock is input to
ceive operation is stopped. To restart the receive operation, confirm that SIOSR<SIOF>
is cleared to “0”.
If the received error occurs, set the SIOCR1<SIOINH> to “1” for stopping the receive
operation immediately. In this case, SIOCR1<SIOS>, SIOSR register, SIORDB register
and SIOTDB register are initialized.
Start shift
operation
A5 A4 A3 A2 A1 A0 B7 B6 B5 B4 B3 B2 B1 B0
Reading received
data D
Writing transmit
data B
Page 101
D
B
Start shift
operation
Reading received
data E
E
Start shift
operation
Reading received
data F
F
TMP86C845UG
SCK
Unknown
pin, re-