MPC857T Freescale Semiconductor, Inc, MPC857T Datasheet - Page 68

• Manufacturer Part Number: MPC857T
• Description: Mpc857t Powerquicc Integrated Communications Processor
• Manufacturer: Freescale Semiconductor, Inc

UTOPIA AC Electrical Specifications
Figure 70
12 UTOPIA AC Electrical Specifications
Table 28
68
Num
U1a
U1
U2
U3
U4
U5
SDA
SCL
shows the AC electrical specifications for the UTOPIA interface.
shows the I
UtpClk rise/fall time (Internal clock option)
Duty cycle
Frequency
UtpClk rise/fall time (external clock option)
Duty cycle
Frequency
RxEnb and TxEnb active delay
UTPB, SOC, Rxclav and Txclav setup time
UTPB, SOC, Rxclav and Txclav hold time
UTPB, SOC active delay (and PHREQ and PHSEL active
delay in MPHY mode)
205
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
202
2
C bus timing.
206
Signal Characteristic
Table 28. UTOPIA AC Electrical Specifications
203
Figure 70. I
207
2
209
C Bus Timing Diagram
204
210
Direction
Output
Output
Output
Input
Input
Input
208
2 ns
4 ns
1 ns
2 ns
Min
50
40
Freescale Semiconductor
211
16 ns
16 ns
Max
4 ns
4ns
50
33
60
33
MHz
MHz
Unit
ns
ns
ns
ns
ns
ns
%
%