B - 26
MOTOROLA
Application:
Date:
Programmer:
SSI Status Register (SSISR)
X:$FFEE (Read)
Reset = $000040
Sheet 3 of 3
SSI
7
6
5
4
3
2
1
0
RDF TDE ROE TUE RFS
TFS
IF1
IF0
Receive Frame Sync
0 =
∏
Wait 1 =
∏
Frame Sync Occurred
Transmitter Underrun Error Flag
0 =
∏
OK
1 =
∏
Error
Receiver Overrun Error Flag
0 =
∏
OK
1 =
∏
Error
Transmit Data Register Empty
0 =
∏
Wait
1 =
∏
Write
Transmit Frame Sync
0 =
∏
Sync Inactive1 =
∏
Sync Active
Receive Data Register Full
0 =
∏
Wait
1 =
∏
Read
Serial Input Flag 0
If SCD0=0 and SYN=1
latch SC0 on FS
Serial Input Flag 1
If SCD1=0 and SYN=1
latch SC0 on FS
SSI Status Bits
•
•
•
23
*
0
*
= Reserved, Program as zero
Figure B-33 SSI Status Register (SSISR)
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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