mpc5645s Freescale Semiconductor, Inc, mpc5645s Datasheet - Page 105

• Manufacturer Part Number: mpc5645s
• Description: Mpc5645s Microcontroller Data Sheet
• Manufacturer: Freescale Semiconductor, Inc

4.18.2
Freescale Semiconductor
1
2
3
4
Nexus Dual Data Rate is not supported. The timings are mentioned for dedicated pins on 416BGA. The max value
for #2, 3 and 4 above, are 0.3 of tMCYC for shared nexus ports.
Num
10 t
11
12
1
2
3
4
5
6
7
8
9
JTAG specifications in this table apply when used for debug functionality. All Nexus timing relative to MCKO is measured from
50% of MCKO and 50% of the respective signal. Nexus timing specified at V
50 pF (Cl=30 pF on MCKO), with SRC = 0b10 for MCKO and 0b11 for others.
Parameter values guaranteed by design.
MDO, MSEO, and EVTO data is held valid until next MCKO low cycle.
The system clock frequency needs to be three times faster that the TCK frequency.
MCKO
MDO
MSEO
EVTO
NTDIS,
t
t
EVTOPW
t
t
t
t
EVTIPW
t
t
MSEOV
NTMSH
EVTOV
t
NTDIH,
MCYC
t
MDOV
TCYC
t
t
MDC
TDC
JOV
Symbol
t
Nexus debug interface
NTMSS
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
2
2
2
2
2
2
2
2
2
2
2
2
C
D MCKO Cycle Time
D MCKO Duty Cycle
D MCKO Low to MDO Data Valid
D MCKO Low to MSEO Data Valid
D MCKO Low to EVTO Data Valid
D EVTI Pulse Width
D EVTO Pulse Width
D TCK Cycle Time
D TCK Duty Cycle
D TDI, TMS Data Setup Time
D TDI, TMS Data Hold Time
D TCK Low to TDO Data Valid
MPC5645S Microcontroller Data Sheet, Rev. 6
3
4
5
Table 51. Nexus debug port timing
Figure 20. Nexus Output Timing
Characteristic
1
4
2
3
3
3
Output Data Valid
DD
= 3.0 V to 3.6 V, T
Min
100
0.1
0.1
0.1
15
40
40
25
5
0
4
1
1
Max
0.2
0.2
0.2
60
60
35
—
—
—
—
—
—
A
Electrical characteristics
= -40 to 105 °C, and CL =
t
t
t
t
t
MCYC
MCYC
MCYC
MCYC
Unit
TCYC
ns
ns
ns
ns
ns
%
%
SpecID
A2.10
A2.11
A2.12
A2.1
A2.2
A2.3
A2.4
A2.5
A2.6
A2.7
A2.8
A2.9
105