DSP56303 FREESCALE [Freescale Semiconductor, Inc], DSP56303 Datasheet - Page 158

• Manufacturer Part Number: DSP56303
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Enhanced Synchronous Serial Interface (ESSI)
7.5.3 ESSI Status Register (SSISR)
The SSISR is a read-only status register by which the DSP reads the ESSI status and serial input
flags.
7-26
23
11
(FSL0 = 0, FSL1 = 0)
(FSL0 = 0, FSL1 = 1)
(FSL0 = 0, FSL1 = 0)
(FSL0 = 0, FSL1 = 1)
—Reserved bit; read as 0; write to 0 0 for future compatibility.
Figure 7-10. Network Mode, External Frame Sync (8 Bit, 2 Words in Frame)
Figure 7-9. Normal Mode, External Frame Sync (8 Bit, 1 Word in Frame)
Frame SYNC
Frame SYNC
22
10
Frame SYNC
Frame SYNC
Data Out
Flags
Flags
Data
21
9
Figure 7-11. ESSI Status Register (SSISR)
20
8
(ESSI0 X:$FFFFB7, ESSI1 X:$FFFFA7)
RDF
DSP56303 User’s Manual, Rev. 2
19
7
Slot 0
SLOT 0
TDE
18
6
ROE
17
5
SLOT 1
TUE
16
4
Wait
RFS
15
3
SLOT 0
TFS
14
2
Freescale Semiconductor
IF1
13
Slot 0
1
SLOT 1
IF0
12
0