HD6473837H Datasheet, PDF (492/562 Pages) Renesas Technology Corp – Hardware Manual

SCSR2—Serial control/status register 2
Bit
7
6
5
—
—
—
Initial value
1
1
1
Read/Write
—
—
—
H'A7
SCI2
4
3
2
1
0
SOL ORER WT
ABT STF
0
0
0
0
0
R/W R/(W)* R/(W)* R/(W)* R/W
Start flag
0 Read
Write
1 Read
Write
Indicates that transfer is stopped
Stops a transfer operation
Indicates transfer in progress or waiting for CS input
Starts a transfer operation
Abort flag
0 [Clearing condition]
After reading 1, cleared by writing 0
1 [Setting condition]
When CS goes high during a transfer
Wait flag
0 [Clearing condition]
After reading 1, cleared by writing 0
1 [Setting condition]
An attempt was made to read or write the (32-byte) serial data buffer
during a transfer or while waiting for CS input
Overrun error flag
0 [Clearing condition]
After reading 1, cleared by writing 0
1 [Setting condition]
Set if a clock pulse is input after transfer is complete, when an
external clock is used
Extended data bit
0 Read SO₂ pin output level is low
Write SO₂ pin output level changes to low
1 Read SO₂ pin output level is high
Write SO₂ pin output level changes to high
Note: * Only a write of 0 for flag clearing is possible.
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