mpc855t Freescale Semiconductor, Inc, mpc855t Datasheet - Page 41

• Manufacturer Part Number: mpc855t
• Description: Mpc855t Powerquicc Integrated Communications Processor
• Manufacturer: Freescale Semiconductor, Inc

Figure 34
10 IEEE 1149.1 Electrical Specifications
Table 13
Freescale Semiconductor
Num
J82
J83
J84
J85
J86
J87
J88
J89
J90
J91
J92
J93
J94
J95
J96
TCK cycle time
TCK clock pulse width measured at 1.5 V
TCK rise and fall times
TMS, TDI data setup time
TMS, TDI data hold time
TCK low to TDO data valid
TCK low to TDO data invalid
TCK low to TDO high impedance
TRST assert time
TRST setup time to TCK low
TCK falling edge to output valid
TCK falling edge to output valid out of high impedance
TCK falling edge to output high impedance
Boundary scan input valid to TCK rising edge
TCK rising edge to boundary scan input invalid
DSCK, DSDI
provides the JTAG timings for the MPC860 shown in
provides the reset timing for the debug port configuration.
CLKOUT
SRESET
MPC860 PowerQUICC™ Family Hardware Specifications, Rev. 8
Figure 34. Reset Timing—Debug Port Configuration
Characteristic
R80
Table 13. JTAG Timing
R70
R81
Figure 35
R82
R80
through
IEEE 1149.1 Electrical Specifications
100.00
100.00
40.00
25.00
40.00
50.00
50.00
0.00
5.00
0.00
Min
All Frequencies
—
—
—
—
—
R81
Figure
38.
10.00
27.00
20.00
50.00
50.00
50.00
Max
—
—
—
—
—
—
—
—
—
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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