參數(shù)資料
型號(hào)： DSP56321
廠商： 飛思卡爾半導(dǎo)體(中國(guó))有限公司
元件分類： 數(shù)字信號(hào)處理
英文描述： 24-Bit Digital Signal Processor
中文描述： 24位數(shù)字信號(hào)處理器
文件頁(yè)數(shù)： 9/84頁(yè)
文件大?。?/td> 898K
代理商： DSP56321
Power
DSP56321 Technical Data, Rev. 11
Freescale Semiconductor
1-3
1.1 Power
1.2 Ground
1.3 Clock
Table 1-2.
Power Inputs
Power Name
Description
V
CCQL
Quiet Core (Low) Power
—An isolated power for the core processing and clock logic. This input must be isolated
externally from all other chip power inputs.
V
CCQH
Quiet External (High) Power
—A quiet power source for I/O lines. This input must be tied externally to all other chip
power inputs, except V
CCQL
.
Address Bus Power
—An isolated power for sections of the address bus I/O drivers. This input must be tied externally
to all other chip power inputs, except V
CCQL
.
Data Bus Power
—An isolated power for sections of the data bus I/O drivers. This input must be tied externally to all
other chip power inputs, except V
CCQL
.
Bus Control Power
—An isolated power for the bus control I/O drivers. This input must be tied externally to all other
chip power inputs
,
except V
CCQL
.
Host Power
—An isolated power for the HI08 I/O drivers. This input must be tied externally to all other chip power
inputs
,
except
V
CCQL
.
ESSI, SCI, and Timer Power
—An isolated power for the ESSI, SCI, and timer I/O drivers. This input must be tied
externally to all other chip power inputs, except V
CCQL
.
Note:
The user must provide adequate external decoupling capacitors for all power connections.
V
CCA
V
CCD
V
CCC
V
CCH
V
CCS
Table 1-3.
Grounds
Name
Description
GND
Ground
—Connected to an internal device ground plane.
Note:
The user must provide adequate external decoupling capacitors for all GND connections.
Table 1-4.
Clock Signals
Signal Name
Type
State During
Reset
Signal Description
EXTAL
Input
Input
External Clock/Crystal Input
—Interfaces the internal crystal oscillator input
to an external crystal or an external clock.
XTAL
Output
Chip-driven
Crystal Output
—Connects the internal crystal oscillator output to an external
crystal. If an external clock is used, leave XTAL unconnected.
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