Port C Signals And Registers; Port D Signals And Registers; Port E Signals And Registers - Freescale Semiconductor DSP56311 User Manual

5.5.2 Port C Signals and Registers

Each of the six Port C signals not used as an ESSI0 signal can be configured as a GPIO signal.
Three registers control the GPIO functionality of Port C: Port C control register (PCRC), Port C
direction register (PRRC), and Port C data register (PDRC). Chapter 7, Enhanced Synchronous
Serial Interface (ESSI), discusses these registers.
Enhanced Synchronous
Serial Interface Port 0

5.5.3 Port D Signals and Registers

Each of the six Port D signals not used as an ESSI1 signal can be configured as a GPIO signal.
Three registers control the GPIO functionality of Port D: Port D control register (PCRD), Port D
direction register (PRRD), and Port D data register (PDRD). Chapter 7, Enhanced Synchronous
Serial Interface (ESSI), discusses these registers.
Enhanced Synchronous
Serial Interface Port 1

5.5.4 Port E Signals and Registers

Each of the three Port E signals not used as an SCI signal can be configured as a GPIO signal.
Three registers control the GPIO functionality of Port E: Port E control register (PCRE), Port E
Freescale Semiconductor
DSP56311
(ESSI0)
Figure 5-3. Port C Signals
DSP56311
(ESSI1)
Figure 5-4. Port D Signals
DSP56311 User's Manual, Rev. 2
General-Purpose Input/Output (GPIO)
Port C GPIO
SC0[0–2]
PC[0–2]
SCK0 PC3
SRD0 PC4
STD0 PC5
Port D GPIO
SC1[0–2]
PD[0–2]
SCK1 PD3
SRD1 PD4
STD1 PD5
5-7