MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 921

• Manufacturer Part Number: MPC555CME
• Description: KIT EVALUATION FOR MPC555
• Manufacturer: Freescale Semiconductor
• Type: Microcontrollerr

Specifications of MPC555CME

• Contents: Module Board, Installation Guide, Power Supply, Cable, Software and more
• Processor To Be Evaluated: MPC555
• Data Bus Width: 32 bit
• Interface Type: RS-232
• For Use With/related Products: MPC555
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

G.14 Reset Timing
MPC555 / MPC556
USER’S MANUAL
49a
55a
NOTES:
43
44
45
46
47
48
49
50
51
52
53
54
55
1. Weak pullups and pulldowns used for Reset timing will comply with the 130-µA mode select current outlined in
2. HRESET, SRESET and PORESET have a glitch detector to ensure that spikes less than 20 ns are rejected. The
Table
tion, is to connect RSTCONF/TEXP to SRESET. The maximum rise time of HRESET should be less than six
clock cycles.
internal HRESET, SRESET and PORESET will assert only if these signals are asserted for more than 100 ns.
CLKOUT to HRESET High Impedance
CLKOUT to SRESET High Impedance
RSTCONF Pulse Width
Configuration Data to HRESET Rising
Edge Setup Time
Configuration Data to RSTCONF
Rising Edge Set Up Time
Configuration Data Hold Time After
RSTCONF Negation
Configuration Data Hold Time After
HRESET Negation
RSTCONF Hold Time After HRESET
Negation
HRESET and RSTCONF Asserted to
Data Out Drive
RSTCONF Negated to Data Out High
Impedance.
CLKOUT of Last Rising Edge Before
Chip Tristates HRESET to Data Out
High Impedance.
DSDI, DSCK Set Up
DSDI, DSCK hold time
SRESET Negated to CLKOUT Rising
Edge for DSDI and DSCK Sample
HRESET, SRESET, PORESET Pulse
Width
G-4.The simplest way to insure meeting this requirement in systems that require the use of the TEXP func-
2
1
Characteristic
ELECTRICAL CHARACTERISTICS
Table G-14 RESET Timing
Rev. 15 October 2000
(T
15*TC + TCC
15*TC + TCC
Expression
A
17*TC
= T
3*TC
8*TC
L
to T
H
)
Min
515
463
463
243
100
60
25
25
25
91
0
0
0
33MHz
Max
20
20
Min
425
382
382
200
100
50
25
25
25
75
0
0
0
40MHz
Max
20
20
MOTOROLA
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
G-43