tmp86fh46bng TOSHIBA Semiconductor CORPORATION, tmp86fh46bng Datasheet - Page 128

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

10.3
Function
10.3.3.2
SIOCR1<SIOS>
SIOSR<SIOF>
SIOSR<SEF>
SCK
SO pin
SIOSR<TXERR>
SIOTDB
SIOCR1
<SIOINH>
SIOSR<TXF>
INTSIO
interrupt
request
pin
(1)
(2)
The receive mode is selected by writing “01B” to SIOCR<SIOM>.
Receive mode
Writing transmit
data A
SIOCR1<SCK>. Transfer direction is selected by using SIOCR1<SIODIR>.
of SCK pin.
the direction of the bit specified by SBIDIR<SIODIR>.
clock falling edge.
rupt request is generated and SIOSR<RXF> is set to “1”
when the all of the 8-bit data has been received. Automatic-wait function is released by reading a re-
ceived data from SIORDB. Then, receive operation is restarted after maximum 1-cycle of serial clock.
SIORDB, before the next data shift-in operation is finished.
Receive mode is selected by setting “01” to SIOCR1<SIOM>. Serial clock is selected by using
After SIOCR1<SIOS> is set to “1”, SIOSR<SIOF> is set synchronously to “1” the falling edge
Synchronizing with the SCK pin's rising edge, the data is received sequentially from SI pin with
SIOSR<SEF> is kept in high level, between the first clock falling edge of SCK pin and eighth
When 8-bit data is received, the data is transferred to SIORDB from shift register. INTSIO inter-
The SIOSR<RXF> is cleared to “0” by reading a data from SIORDB.
In the internal clock operation, the serial clock stops to “H” level by an automatic-wait function
In external clock operation, after SIOSR<RXF> is set to “1”, the received data must be read from
Note:In internal clock operation, when the SIOCR1<SIOS> is set to "1", the serial clock is gener-
Starting the receive operation
During the receive operation
Figure 10-9 Example of Transmit Error Processing
A
ated from SCK pin after maximum 1-cycle of serial clock frequency.
A7 A6
Writing transmit
data B
Start shift
operation
A5 A4 A3 A2 A1 A0 B7 B6 B5 B4 B3 B2 B1 B0
B
Page 110
Start shift
operation
Start shift
operation
TMP86FH46BNG
Unknown