Signal Groupings; Table 2-1 Dsp56309 Functional Signal Groupings; Table 2-14 Serial Communication Interface (Sci) - Motorola DSP56309 User Manual

2.1

SIGNAL GROUPINGS

The DSP56309 input and output signals are organized into functional groups, as shown
in Table 2-1 and as illustrated in Figure 2-1.
The DSP56309 is operated from a 3 V supply.

Table 2-1 DSP56309 Functional Signal Groupings

Power (V )
CC
Ground (GND)
Clock
PLL
Address Bus
Data Bus
Bus Control
Interrupt and Mode Control
Host Interface (HI08)
Enhanced Synchronous Serial Interface
(ESSI)
Serial Communication Interface (SCI)
Timer
OnCE/JTAG Port
Note: 1. Port A signals define the external memory interface port, including the external
address bus, data bus, and control signals.
2. Port B signals are the HI08 port signals multiplexed with the GPIO signals.
3. Port C and D signals are the two ESSI port signals multiplexed with the GPIO signals.
4. Port E signals are the SCI port signals multiplexed with the GPIO signals.
Figure 2-1 is a diagram of DSP56309 signals by functional group.
MOTOROLA
Functional Group
DSP56309UM/D
Signal/Connection Descriptions
Number of
Signals
20
19
2
3
18
1
Port A
24
13
5
2 16
Port B
Ports C and 12
3
D
4 3
Port E
3
6
Signal Groupings
Detailed
Description
Table 2-2
Table 2-3
Table 2-4
Table 2-5
Table 2-6
Table 2-7
Table 2-8
Table 2-9
Table 2-11
Table 2-12
and
Table 2-13
Table 2-14
Table 2-15
Table 2-16
2-3