MPC5125 datasheet(79/92 Pages) FREESCALE

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Electrical and Thermal Characteristics

MPC5125 Microcontroller Data Sheet, Rev. 3

Freescale Semiconductor

Figure 44. Timing Diagram — SPI Slave Mode, Format 1 (CPHA = 1)

4.3.16

GPIOs and Timers

The MPC5125 contains several sets of I/Os that do not require special setup, hold, or valid requirements. The external events

(GPIO or timer inputs) are asynchronous to the system clock. The inputs must be valid for at least tIOWID to ensure proper

capture by the internal IP clock.

4.3.17

Fusebox

Table 47 gives the Fusebox timing specification.

Table 46. GPIO/Timers Input AC Timing Specifications

Symbol

Description

Min

Unit

SpecID

tIOWID

GPIO/Timers inputs — minimum pulse width

2T1

NOTES:

1 T is the IP bus clock cycle. T = 15 ns is the minimum value (for the maximum IP bus frequency of 66 MHz).

A21.1

Table 47. Fusebox Timing Characteristics

Sym

Description

Min

Max

Units

SpecID

tFUSEWR Program time

1 for fuse

NOTES:

1 The program length is defined by the value defined in the EPM_PGM_LENGTH bits of the IIM module.

62.5

—

μs

A22.1

IFUSEWR Program current to program one fuse bit

—

A22.2

SCK

(CLKPOL=0)

SCK

(CLKPOL=1)

MOSI

Input

MISO

Output

MPC5125 Datasheet(PDF) 79 Page - Freescale Semiconductor, Inc

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