MPC870 FREESCALE [Freescale Semiconductor, Inc], MPC870 Datasheet - Page 42

• Manufacturer Part Number: MPC870
• Description: Hardware Specifications
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Bus Signal Timing
Table 15
42
Num
R69
R70
R71
R72
R73
R74
R75
R76
R77
R78
R79
R80
R81
R82
shows the reset timing for the MPC875/870.
CLKOUT to HRESET high
impedance (MAX = 0.00 × B1 +
20.00)
CLKOUT to SRESET high
impedance (MAX = 0.00 × B1 +
20.00)
RSTCONF pulse width
(MIN = 17.00 × B1)
Configuration data to HRESET
rising edge setup time
(MIN = 15.00 × B1 + 50.00)
Configuration data to RSTCONF
rising edge setup time
(MIN = 0.00 × B1 + 350.00)
Configuration data hold time after
RSTCONF negation
(MIN = 0.00 × B1 + 0.00)
Configuration data hold time after
HRESET negation
(MIN = 0.00 × B1 + 0.00)
HRESET and RSTCONF
asserted to data out drive
(MAX = 0.00 × B1 + 25.00)
RSTCONF negated to data out
high impedance
(MAX = 0.00 × B1 + 25.00)
CLKOUT of last rising edge
before chip three-states
HRESET to data out high
impedance
(MAX = 0.00 × B1 + 25.00)
DSDI, DSCK setup
(MIN = 3.00 × B1)
DSDI, DSCK hold time
(MIN = 0.00 × B1 + 0.00)
SRESET negated to CLKOUT
rising edge for DSDI and DSCK
sample (MIN = 8.00 × B1)
Characteristic
—
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
MPC875/MPC870 Hardware Specifications, Rev. 3.0
515.20
504.50
350.00
242.40
90.90
0.00
0.00
0.00
Min
—
—
—
—
—
—
Table 15. Reset Timing
33 MHz
20.00
20.00
25.00
25.00
25.00
Max
—
—
—
—
—
—
—
—
—
425.00
425.00
350.00
200.00
75.00
0.00
0.00
0.00
Min
—
—
—
—
—
—
40 MHz
20.00
20.00
25.00
25.00
25.00
Max
—
—
—
—
—
—
—
—
—
257.60
277.30
350.00
121.20
45.50
0.00
0.00
0.00
Min
—
—
—
—
—
—
66 MHz
20.00
20.00
25.00
25.00
25.00
Max
—
—
—
—
—
—
—
—
—
212.50
237.50
350.00
100.00
37.50
0.00
0.00
0.00
Min
—
—
—
—
—
—
Freescale Semiconductor
80 MHz
20.00
20.00
25.00
25.00
25.00
Max
—
—
—
—
—
—
—
—
—
Unit
ns
ns
ns
ns
ns
ns
ns
—
ns
ns
ns
ns
ns
ns