mpc5632m Freescale Semiconductor, Inc, mpc5632m Datasheet - Page 84
mpc5632m
Manufacturer Part Number
mpc5632m
Description
Mpc5634m Microcontroller Data Sheet
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MPC5632M.pdf
(112 pages)
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Electrical Characteristics
84
1
2
3
4
5
6
7
8
9
MCKO
MDO
MSEO
EVTO
Num
All Nexus timing relative to MCKO is measured from 50% of MCKO and 50% of the respective signal. Nexus timing
specified at V
mode, T
Achieving the absolute minimum MCKO cycle time may require setting the MCKO divider to more than its minimum
setting (NPC_PCR[MCKO_DIV] depending on the actual system frequency being used.
This is a functionally allowable feature. However, this may be limited by the maximum frequency specified by the
Absolute minimum MCKO period specification.
This may require setting the MCKO divider to more than its minimum setting (NPC_PCR[MCKO_DIV]) depending
on the actual system frequency being used.
MDO, MSEO, and EVTO data is held valid until next MCKO low cycle.
Achieving the absolute minimum TCK cycle time may require a maximum clock speed (system frequency / 8) that
is less than the maximum functional capability of the design (system frequency / 4) depending on the actual system
frequency being used.
This is a functionally allowable feature. However, this may be limited by the maximum frequency specified by the
Absolute minimum TCK period specification.
This may require a maximum clock speed (system frequency / 8) that is less than the maximum functional capability
of the design (system frequency / 4) depending on the actual system frequency being used.
The RDY pin timing is asynchronous to MCKO. The timing is guaranteed by design to function correctly.
11
12
13
14
15
16
A
t
t
= TL to TH, and CL = 30 pF with DSC = 0b10.
t
t
NTMSH
NTMSS
NTDIH
NTDIS
t
JOV
—
Symbol
DD
= 1.14 V to 1.32 V, V
CC
CC
CC
CC
CC
CC
Table 28. Nexus Debug Port Timing
TDI Data Setup Time
TDI Data Hold Time
TMS Data Setup Time
TMS Data Hold Time
TCK Low to TDO Data Valid
RDY Valid to MCKO
Preliminary—Subject to Change Without Notice
MPC5634M Microcontroller Data Sheet, Rev. 3
3
4
6
Figure 13. Nexus Output Timing
DDEH
Characteristic
1
= 4.5 V to 5.5 V with multi-voltage pads programmed to Low-Swing
9
2
Output Data Valid
Min. Value
1
(continued)
25
25
10
—
5
5
Max. Value
20
—
—
—
—
—
Freescale Semiconductor
Unit
ns
ns
ns
ns
ns
—
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