
DSP56366 Technical Data, Rev. 3.1
Freescale Semiconductor
2-1
2
Signal/Connection Descriptions
2.1
Signal Groupings
The input and output signals of the DSP56366 are organized into functional groups, which are listed in
The DSP56366 is operated from a 3.3 V supply; however, some of the inputs can tolerate 5 V. A special
notice for this feature is added to the signal descriptions of those inputs.
Table 2-1 DSP56366 Functional Signal Groupings
Functional Group
Number of
Signals
Detailed
Description
Power (VCC)20
Ground (GND)
18
Clock and PLL
3
Address bus
Port A1
1 Port A is the external memory interface port, including the external address bus, data bus, and control signals.
18
Data bus
24
Bus control
10
Interrupt and mode control
5
HDI08
Port B2
2 Port B signals are the GPIO port signals which are multiplexed with the HDI08 signals.
16
SHI
5
ESAI
Port C3
3 Port C signals are the GPIO port signals which are multiplexed with the ESAI signals.
12
ESAI_1
Port E4
4 Port E signals are the GPIO port signals which are multiplexed with the ESAI_1 signals.
6
Digital audio transmitter (DAX)
Port D5
5 Port D signals are the GPIO port signals which are multiplexed with the DAX signals.
2
Timer
1
JTAG/OnCE Port
4