mpc8555e Freescale Semiconductor, Inc, mpc8555e Datasheet - Page 51

• Manufacturer Part Number: mpc8555e
• Description: Mpc8555e Powerquicc Iii Processor With Integrated Security
• Manufacturer: Freescale Semiconductor, Inc

Figure 32
Figure 33
Figure 34
Figure 35
Freescale Semiconductor
MPC8555E PowerQUICC™ III Integrated Communications Processor Hardware Specification, Rev. 4.2
provides the AC test load for TDO and the boundary-scan outputs of the MPC8555E.
provides the JTAG clock input timing diagram.
provides the TRST timing diagram.
provides the boundary-scan timing diagram.
External Clock
Data Outputs
Data Outputs
Data Inputs
External Clock
Boundary
Boundary
Boundary
TRST
JTAG
JTAG
Output
t
Output Data Valid
JTKLDX
Figure 32. AC Test Load for the JTAG Interface
Figure 33. JTAG Clock Input Timing Diagram
Figure 35. Boundary-Scan Timing Diagram
VM
t
JTKHKL
Figure 34. TRST Timing Diagram
VM
t
Z
VM
JTKLDZ
VM = Midpoint Voltage (OV DD /2)
VM = Midpoint Voltage (OV DD /2)
VM = Midpoint Voltage (OV DD /2)
t
0
JTKLDV
t
= 50 Ω
JTG
VM
t
TRST
t
JTDVKH
VM
R
VM
Output Data Valid
L
Data Valid
= 50 Ω
Input
t
JTGR
VM
OV
DD
t
t
JTDXKH
JTGF
/2
JTAG
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