參數(shù)資料
型號: MCF52235
廠商: 飛思卡爾半導(dǎo)體(中國)有限公司
英文描述: ColdFire Microcontroller
中文描述: ColdFire微控制器
文件頁數(shù): 41/50頁
文件大小: 656K
代理商: MCF52235
Preliminary Electrical Characteristics
MCF52235 ColdFire Microcontroller, Rev. 3
Freescale Semiconductor
41
Figure 11. QSPI Timing
2.12
JTAG and Boundary Scan Timing
Table 34. JTAG and Boundary Scan Timing
Num
Characteristics
1
1
JTAG_EN is expected to be a static signal. Hence, it is not associated with any timing.
Symbol
Min
Max
Unit
J1
TCLK frequency of operation
f
JCYC
DC
1/4
f
sys/2
J2
TCLK cycle period
t
JCYC
4
×
t
CYC
ns
J3
TCLK clock pulse width
t
JCW
26
ns
J4
TCLK rise and fall times
t
JCRF
0
3
ns
J5
Boundary scan input data setup time to TCLK rise
t
BSDST
4
ns
J6
Boundary scan input data hold time after TCLK rise
t
BSDHT
26
ns
J7
TCLK low to boundary scan output data valid
t
BSDV
0
33
ns
J8
TCLK low to boundary scan output high Z
t
BSDZ
0
33
ns
J9
TMS, TDI input data setup time to TCLK rise
t
TAPBST
4
ns
J10
TMS, TDI input data hold time after TCLK rise
t
TAPBHT
10
ns
J11
TCLK low to TDO data valid
t
TDODV
0
26
ns
J12
TCLK low to TDO high Z
t
TDODZ
0
8
ns
J13
TRST assert time
t
TRSTAT
100
ns
J14
TRST setup time (negation) to TCLK high
t
TRSTST
10
ns
QSPI_CS[3:0]
QSPI_CLK
QSPI_DOUT
QS5
QS1
QSPI_DIN
QS3
QS4
QS2
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