MPC855T datasheet(43/80 Pages) FREESCALE

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MPC860 Family Hardware Specifications, Rev. 7

Freescale Semiconductor

CPM Electrical Characteristics

11 CPM Electrical Characteristics

This section provides the AC and DC electrical specifications for the communications processor module (CPM) of

the MPC860.

11.1 PIP/PIO AC Electrical Specifications

Table 14 provides the PIP/PIO AC timings as shown in Figure 38 through Figure 42.

Figure 38. PIP Rx (Interlock Mode) Timing Diagram

Table 14. PIP/PIO Timing

Num

Characteristic

All Frequencies

Unit

Min

Max

Data-in setup time to STBI low

—

Data-in hold time to STBI high

2.5 – t3 1

t3 = Specification 23.

—

CLK

STBI pulse width

1.5

—

CLK

STBO pulse width

1 CLK – 5 ns

—

Data-out setup time to STBO low

—

CLK

Data-out hold time from STBO high

—

CLK

STBI low to STBO low (Rx interlock)

—

CLK

STBI low to STBO high (Tx interlock)

—

CLK

Data-in setup time to clock high

—

Data-in hold time from clock high

7.5

—

Clock low to data-out valid (CPU writes data, control, or direction)

—

DATA-IN

STBI

STBO

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