Table 3-16 JTA" />
參數(shù)資料
型號: DSP56F801EVM
廠商: Freescale Semiconductor
文件頁數(shù): 32/48頁
文件大?。?/td> 0K
描述: KIT EVALUATION FOR DSP56F801
標(biāo)準(zhǔn)包裝: 1
56F801 Technical Data, Rev. 17
38
Freescale Semiconductor
3.11 JTAG Timing
Figure 3-27 Test Clock Input Timing Diagram
Table 3-16 JTAG Timing 1, 3
Operating Conditions: V
SS = VSSA = 0 V, VDD = VDDA = 3.0–3.6 V, TA = –40° to +85°C, CL 50pF
1.
Timing is both wait state and frequency dependent. For the values listed, T = clock cycle. For 80MHz
operation, T = 12.5ns.
Characteristic
Symbol
Min
Max
Unit
TCK frequency of operation2
2.
TCK frequency of operation must be less than 1/8 the processor rate.
3.
Parameters listed are guaranteed by design.
fOP
DC
10
MHz
TCK cycle time
tCY
100
ns
TCK clock pulse width
tPW
50
ns
TMS, TDI data setup time
tDS
0.4
ns
TMS, TDI data hold time
tDH
1.2
ns
TCK low to TDO data valid
tDV
26.6
ns
TCK low to TDO tri-state
tTS
23.5
ns
TRST assertion time
tTRST
50
ns
DE assertion time
tDE
8T
ns
TCK
(Input)
VM
VIL
VM = VIL + (VIH – VIL)/2
VM
VIH
tPW
tCY
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