TMP86FS49AFG Toshiba Semiconductor, TMP86FS49AFG Datasheet - Page 202

• Manufacturer Part Number: TMP86FS49AFG
• Description: 8-Bit Microcontroller
• Manufacturer: Toshiba Semiconductor

15.3 Function
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SIO2SR<TXERR>
SIO2TDB
SIO2CR
<SIOINH>
SIO2CR<SIOS>
SIO2SR<SIOF>
SIO2SR<SEF>
SCK2
SO2 pin
SIO2SR<TXF>
INTSIO2
interrupt
request
15.3.3.2 Receive mode
pin
Writing transmit
data A
(1)
(2)
The receive mode is selected by writing “01B” to SIO2CR<SIOM>.
SIO2CR<SCK>. Transfer direction is selected by using SIO2CR<SIODIR>.
SCK2
the direction of the bit specified by SBI2DIR<SIODIR>.
clock falling edge.
rupt request is generated and SIO2SR<RXF> is set to “1”
when the all of the 8-bit data has been received. Automatic-wait function is released by reading a
received data from SIO2RDB. Then, receive operation is restarted after maximum 1-cycle of serial
clock.
SIO2RDB, before the next data shift-in operation is finished.
Starting the receive operation
Receive mode is selected by setting “01” to SIO2CR<SIOM>. Serial clock is selected by using
After SIO2CR<SIOS> is set to “1”, SIO2SR<SIOF> is set synchronously to “1” the falling edge of
Synchronizing with the
SIO2SR<SEF> is kept in high level, between the first clock falling edge of
When 8-bit data is received, the data is transferred to SIO2RDB from shift register. INTSIO2 inter-
Note: In internal clock operation, when the SIO2CR<SIOS> is set to "1", the serial clock is generated
During the receive operation
The SIO2SR<RXF> is cleared to “0” by reading a data from SIO2RDB.
In the internal clock operation, the serial clock stops to “H” level by an automatic-wait function
In external clock operation, after SIO2SR<RXF> is set to “1”, the received data must be read from
Figure 15-9 Example of Transmit Error Processingme
A
pin.
from
A7 A6
Writing transmit
data B
SCK2
Start shift
operation
A5 A4 A3 A2 A1 A0 B7 B6 B5 B4 B3 B2 B1 B0
pin after maximum 1-cycle of serial clock frequency.
B
SCK2
pin's rising edge, the data is received sequentially from SI2 pin with
Page 186
Start shift
operation
Start shift
operation
SCK2
Unknown
TMP86FS49AFG
pin and eighth