參數(shù)資料
型號： MC56F8347VVFE
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 數(shù)字信號處理
英文描述： 16-BIT, 120 MHz, OTHER DSP, PBGA160
封裝： ROHS COMPLIANT, MAPBGA-160
文件頁數(shù)： 48/172頁
文件大?。?/td> 2620K
代理商： MC56F8347VVFE
Reset, Stop, Wait, Mode Select, and Interrupt Timing
56F8347 Technical Data, Rev.11
Freescale Semiconductor
141
Preliminary
10.9 Reset, Stop, Wait, Mode Select, and Interrupt Timing
Table 10-17 Reset, Stop, Wait, Mode Select, and Interrupt Timing1,2
1. In the formulas, T = clock cycle. For an operating frequency of 60MHz, T = 16.67ns. At 8MHz (used during Reset and
Stop modes), T = 125ns.
2. Parameters listed are guaranteed by design.
Characteristic
Symbol
Typical
Min
Typical
Max
Unit
See Figure
RESET Assertion to Address, Data and Control
Signals High Impedance
tRAZ
—21
ns
Minimum RESET Assertion Duration
tRA
16T
—
ns
RESET Deassertion to First External Address
Output3
3. During Power-On Reset, it is possible to use the device’s internal reset stretching circuitry to extend this period to 221T.
tRDA
63T
64T
ns
Edge-sensitive Interrupt Request Width
tIRW
1.5T
—
ns
IRQA, IRQB Assertion to External Data Memory
Access Out Valid, caused by first instruction
execution in the interrupt service routine
tIDM
18T
—
ns
tIDM - FAST
14T
—
IRQA, IRQB Assertion to General Purpose Output
Valid, caused by first instruction execution in the
interrupt service routine
tIG
18T
—
ns
tIG - FAST
14T
—
Delay from IRQA Assertion (exiting Wait) to
External Data Memory Access4
4. The minimum is specified for the duration of an edge-sensitive IRQA interrupt required to recover from the Stop state.
This is not the minimum required so that the IRQA interrupt is accepted.
tIRI
22T
—
ns
tIRI -FAST
18T
—
Delay from IRQA Assertion to External Data
Memory Access (exiting Stop)
tIF
22T
—
ns
tIF - FAST
18T
—
IRQA Width Assertion to Recover from Stop
State5
5. The interrupt instruction fetch is visible on the pins only in Mode 3.
tIW
1.5T
—
ns
Because
of
an
order
from
the
United
States
International
Trade
Commission,
BGA-packaged
product
lines
and
part
numbers
indicated
here
currently
are
not
available
from
Freescale
for
import
or
sale
in
the
United
States
prior
to
September
2010:
MC56F8147VVFE,MC56F8347VVFE
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