JTAG Timing
Unit
Table 3-23 JTAG Timing1, 2 (continued)
Characteristics
All frequencies
Min Max
No.
509
510
511
TMS, TDI data hold time
25.0
0.0
—
ns
ns
ns
TCK low to TDO data valid
44.0
44.0
TCK low to TDO high impedance
0.0
1
2
VCC = 1.8 V 0.09 V; TJ = -40°C to +95°C, CL = 50 pF
All timings apply to OnCE module data transfers because it uses the JTAG port as an interface.
501
502
VM
502
VM
VIH
503
TCK
(Input)
VIL
503
AA0496
Figure 3-39 Test Clock Input Timing Diagram
VIH
TCK
(Input)
VIL
504
Input Data Valid
505
Data
Inputs
506
507
506
Data
Output Data Valid
Outputs
Data
Outputs
Data
Outputs
Output Data Valid
AA0497
Figure 3-40 Boundary Scan (JTAG) Timing Diagram
DSP56367 Technical Data, Rev. 2.1
Freescale Semiconductor
3-53
FREESCALE [ Freescale ]
