Motorola DSP56305 User Manual page 630

PROGRAMMING REFERENCE
Application:
ESSI
Serial Input Flag 0
If SCD0 = 0, SYN = 1, & TE1 = 0
latch SC0 on FS
Serial Input Flag 1
If SCD1 = 0, SYN = 1, & TE2 = 0
latch SC0 on FS
Transmit Frame Sync
0 = ÷ Sync Inactive 1 = ÷ Sync Active
Receive Frame Sync
0 = ÷ Wait 1 = ÷ Frame Sync Occurred
Transmitter Underrun Error Flag
0 = ÷ OK
Receiver Overrun Error Flag
0 = ÷ OK
Transmit Data Register Empty
0 = ÷ Wait
Receive Data Register Full
0 = ÷ Wait
SSI Status Register (SSISRx)
D-30
1 = ÷ Error
1 = ÷ Error
1 = ÷ Write
1 = ÷ Read
ESSI0: $FFFFB7 (Read)
ESSI1: $FFFFA7 (Read)
Figure D-14 ESSI Status Register (SSISR)
DSP56305 User's Manual
23 7 6 5
*
RDF TDE ROE
0
SSI Status Bits
= Reserved, program as 0
*
Date:
Programmer:
Sheet 3 of 4
4 3 2 1 0
TUE RFS TFS IF1 IF0
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