Signals/Connections
1
The DSP56301 input and output signals are organized into functional groups, as shown in Table 1-1 and illustrated
in Figure 1-1. The DSP56301 operates from a 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 1-1. DSP56301 Functional Signal Groupings
Number of
Signals by
Package Type
Functional Group
Detailed Description
MAP-
BGA
TQFP
1
Power (V
)
25
26
2
45
38
2
Table 1-2
Table 1-3
Table 1-4
Table 1-5
Table 1-6
Table 1-7
Table 1-8
Table 1-9
Table 1-11
CC
1
Ground (GND)
Clock
PLL
3
3
Address Bus
Data Bus
Bus Control
24
24
15
5
24
24
15
5
2
Port A
Interrupt and Mode Control
Host Interface (HI32)
3
Port B
52
12
52
12
4
Enhanced Synchronous Serial Interface (ESSI)
Ports C and D
Table 1-12 and
Table 1-13
5
Serial Communication Interface (SCI)
Timer
Port E
3
3
6
3
3
6
Table 1-14
Table 1-15
Table 1-16
JTAG/OnCE Port
Notes: 1. The number of available power and ground signals is package-dependent. In the TQFP package specific pins are dedicated
internally to device subsystems. In the MAP-BGA package, power and ground connections (except those providing PLL
power) connect to internal power and ground planes, respectively.
2. Port A signals define the external memory interface port, including the external address bus, data bus, and control signals.
3. Port B signals are the HI32 port signals multiplexed with the GPIO signals.
4. Port C and D signals are the two ESSI port signals multiplexed with the GPIO signals.
5. Port E signals are the SCI port signals multiplexed with the GPIO signals.
6. Each device also includes several no connect (NC) pins. The number of NC connections is package-dependent: the TQFP
has 9 NCs and the MAP-BGA has 20 NCs. Do not connect any line, component, trace, or via to these pins. See Chapter 3
for details.
DSP56301 Technical Data, Rev. 10
Freescale Semiconductor
1-1
FREESCALE [ Freescale ]
