mpc880 Freescale Semiconductor, Inc, mpc880 Datasheet - Page 46

• Manufacturer Part Number: mpc880
• Description: Mpc885 Powerquicc Integrated Communications Processor
• Manufacturer: Freescale Semiconductor, Inc

CPM Electrical Characteristics
12 CPM Electrical Characteristics
This section provides the AC and DC electrical specifications for the communications processor module
(CPM) of the MPC885/MPC880.
12.1
Table 16
46
Num
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
MPC885/MPC880 PowerQUICC™ Hardware Specifications, Rev. 4
Figure 42. PIP Rx (Interlock Mode) Timing Diagram
Characteristic
21
27
Table 16. PIP/PIO Timing
Figure 42
23
24
through
Figure
22
1 clk – 5 ns
All Frequencies
Min
1.5
7.5
15
—
—
0
0
2
5
2
46.
Freescale Semiconductor
Max
4.5
25
—
—
—
—
—
—
—
—
—
Unit
clk
clk
clk
clk
clk
clk
ns
ns
ns
ns
ns