MPC857T Freescale Semiconductor, Inc, MPC857T Datasheet - Page 46

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

CPM Electrical Characteristics
11 CPM Electrical Characteristics
This section provides the AC and DC electrical specifications for the communications processor module
(CPM) of the MPC862/857T/857DSL.
11.1
Table 14
46
1
Num
t3 = Specification 23
21
22
23
24
25
26
27
28
29
30
31
provides the PIP/PIO AC timings as shown in
PIP/PIO AC Electrical Specifications
DATA-IN
Data-in setup time to STBI low
Data-in hold time to STBI high
STBI pulse width
STBO pulse width
Data-out setup time to STBO low
Data-out hold time from STBO high
STBI low to STBO low (Rx interlock)
STBI low to STBO high (Tx interlock)
Data-in setup time to clock high
Data-in hold time from clock high
Clock low to data-out valid (CPU writes data, control, or direction)
STBO
STBI
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
Figure 40. PIP Rx (Interlock Mode) Timing Diagram
Characteristic
21
27
Table 14. PIP/PIO Timing
Figure 40
23
24
though
1 clk – 5 ns
2.5 – t3
Figure
Min
22
1.5
7.5
All Frequencies
—
15
—
0
2
5
2
1
44.
Freescale Semiconductor
Max
25
—
—
—
—
—
—
—
—
—
2
Unit
clk
clk
clk
clk
clk
clk
ns
ns
ns
ns
ns