dsp56001a Freescale Semiconductor, Inc, dsp56001a Datasheet - Page 10

• Manufacturer Part Number: dsp56001a
• Description: 24-bit Digital Signal Processor
• Manufacturer: Freescale Semiconductor, Inc

DSP56001A
Clock
CLOCK
ADDRESS BUS
DATA BUS
1-4
EXTAL
XTAL
A0–A15
D0–D23
Signal
Name
Names
Names
Signal
Signal
Output
Signal
Input
Type
Output
Input/
Signal
Output
Signal
Type
Type
during
driven
Reset
Input
Chip-
State
Tri-
stated
Tri-
stated
during
during
Reset
State
Reset
State
Freescale Semiconductor, Inc.
External Clock/Crystal Input—This input should be connected to an
external crystal or to an external oscillator.
Crystal Output—This output connects the internal crystal oscillator
output to an external crystal. If an external oscillator is used, XTAL
should be left unconnected.
For More Information On This Product,
Table 1-5 Address Bus Signals
Data Bus—These signals provide the bidirectional data bus for
external program and data memory accesses. D0–D23 are tri-stated
when the BG or RESET signal is asserted.
Address Bus—These signals specify the address for external
program and data memory accesses. If there is no external bus
activity, A0–A15 remain at their previous values to reduce power
consumption. A0–A15 are tri-stated when the bus grant signal is
asserted.
Table 1-6 Data Bus Signals
Table 1-4 Clock Signals
DSP56001A/D, Rev. 1
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Signal Description
Signal Description
Signal Description
MOTOROLA