参数资料
型号: MSC8112TMP2400V
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 数字信号处理
英文描述: OTHER DSP, PBGA431
封装: 20 X 20 MM, PLASTIC, BGA-431
文件页数: 29/44页
文件大小: 1097K
代理商: MSC8112TMP2400V
MSC8112 Dual Core Digital Signal Processor Data Sheet, Rev. 1
Freescale Semiconductor
35
2.5.13
JTAG Signals
Table 30. JTAG Timing
No.
Characteristics
All
frequencies
Unit
Min
Max
700
TCK frequency of operation (1/(T
C ×
4); maximum 25 MHz)
0.0
25
MHz
701
TCK cycle time
40.0
ns
702
TCK clock pulse width measured at VM = 1.6 V
High
Low
20.0
16.0
ns
703
TCK rise and fall times
0.0
3.0
ns
704
Boundary scan input data set-up time
5.0
ns
705
Boundary scan input data hold time
20.0
ns
706
TCK low to output data valid
0.0
30.0
ns
707
TCK low to output high impedance
0.0
30.0
ns
708
TMS, TDI data set-up time
5.0
ns
709
TMS, TDI data hold time
20.0
ns
710
TCK low to TDO data valid
0.0
20.0
ns
711
TCK low to TDO high impedance
0.0
20.0
ns
712
TRST assert time
100.0
ns
713
TRST set-up time to TCK low
30.0
ns
Note:
All timings apply to OnCE module data transfers as well as any other transfers via the JTAG port.
Figure 29. Test Clock Input Timing Diagram
Figure 30. Boundary Scan (JTAG) Timing Diagram
TCK
(Input)
VM
VIH
VIL
701
702
703
TCK
(Input)
Data
Inputs
Data
Outputs
Data
Outputs
VIH
VIL
Input Data Valid
Output Data Valid
705
704
706
707
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