Figure 7-4 Scn1 Pin Configuration - Motorola DSP56305 User Manual

Synchronous
operation?
Use
transmitter
#2?
0
Pin
direction?
Input
Use drive
enable for
transmitter #0
(STD pin)?
RX
SCn1
pin is...
Frame Sync
Note: 1. "n" in SCn1 is ESSI (0 or 1)
2. TDm = Transmit Data Signal m
MOTOROLA
Enhanced Synchronous Serial Interface (ESSI)
Async
0
Mode
1
SCD1
Input
Output
CRB
RX Flag 1
Frame Sync

Figure 7-4 SCn1 Pin Configuration

DSP56305 User's Manual
ESSI Data and Control Signals
SCn1 Pin
Sync
1
SYN
Mode
CRB
0
0 1
SCD1
CRB
0
SSC1
CRA
Flag 1
In Out
1
TE2
CRB
Output
1
TD0 Drive TD2
Enable Out Out
AA1456
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