mpc855t Freescale Semiconductor, Inc, mpc855t Datasheet - Page 43

• Manufacturer Part Number: mpc855t
• Description: Mpc855t Powerquicc Integrated Communications Processor
• Manufacturer: Freescale Semiconductor, Inc

11 CPM Electrical Characteristics
This section provides the AC and DC electrical specifications for the communications processor module
(CPM) of the MPC860.
11.1
Table 14
1
Freescale Semiconductor
Num
t3 = Specification 23.
21
22
23
24
25
26
27
28
29
30
31
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)
provides the PIP/PIO AC timings as shown in
PIP/PIO AC Electrical Specifications
DATA-IN
STBO
STBI
MPC860 PowerQUICC™ Family Hardware Specifications, Rev. 8
Figure 39. PIP Rx (Interlock Mode) Timing Diagram
Characteristic
21
27
Table 14. PIP/PIO Timing
Figure 39
23
24
through
1 CLK – 5 ns
Figure
22
2.5 – t3
Min
1.5
7.5
15
All Frequencies
—
—
0
2
2
5
CPM Electrical Characteristics
43.
1
Max
25
—
—
—
—
—
—
—
—
—
2
Unit
CLK
CLK
CLK
CLK
CLK
CLK
ns
ns
ns
ns
ns
43