Figure 7-1 Essi Block Diagram; Serial Receive Data Signal (Srd) - Motorola DSP56305 User Manual

7.3.2

Serial Receive Data Signal (SRD)

The SRD signal receives serial data and transfers the data to the ESSI Receive Shift
Register. SRD may be programmed as a GPIO signal (P4) when the ESSI SRD function is
not being used.
Interrupts
MOTOROLA
GDB DDB
RSMA
RSMB
TSMA
TSMB
CRA
CRB
TSR
SSISR
Clock/Frame Sync Generators and Control Logic

Figure 7-1 ESSI Block Diagram

DSP56305 User's Manual
Enhanced Synchronous Serial Interface (ESSI)
ESSI Data and Control Signals
RCLK
RX SHIFT REG
TCLK
TX0 SHIFT REG
TX1 SHIFT REG
TX2 SHIFT REG
SRD
RX
STD
TX0
SC0
TX1
SC1
TX2
SC2
SCK
AA0678
7-5