DSP56303 데이터 시트보기 (PDF) - Freescale Semiconductor

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DSP56303

DSP56303 24-bit digital signal processor (DSP)

Freescale Semiconductor 

Signals/Connections

2

The DSP56303 input and output signals are organized into functional groups, as shown in Table

2-1 and illustrated in Figure 2-1. The DSP56303 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 2-1. DSP56303 Functional Signal Groupings

Functional Group

Number of Signals

Description and Page

Power (VCC)

18

Table 2-2 on page -3

Ground (GND)

19

Table 2-3 on page -3

Clock

2

Table 2-4 on page -4

PLL

3

Table 2-5 on page -5

Address bus

Data bus

Port A1

18

Table 2-6 on page -5

24

Table 2-7 on page -6

Bus control

13

Table 2-8 on page -6

Interrupt and mode control

5

Table 2-9 on page -8

HI08

Port B2

16

Table 2-11 on page -10

ESSI

Ports C and D3

12

Table 2-12 on page -13

Table 2-13 on page -15

SCI

Port E4

3

Table 2-14 on page -17

Timer5

3

Table 2-15 on page -17

OnCE/JTAG Port

6

Table 2-16 on page -18

Notes: 1.

2.

3.

4.

5.

Port A signals define the external memory interface port, including the external address bus, data bus, and

control signals.

Port B signals are the HI08 port signals multiplexed with the GPIO signals.

Port C and D signals are the two ESSI port signals multiplexed with the GPIO signals.

Port E signals are the SCI port signals multiplexed with the GPIO signals.

The number of Ground signals listed are for the 144-pin TQFP package. For the 196-ball MAP-BGA package,

there are 66 GND connections.

DSP56303 User’s Manual, Rev. 2

Freescale Semiconductor

2-1

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