MPC5643L datasheet(14/136 Pages) FREESCALE

14 / 136 page

MPC5643L Microcontroller Data Sheet, Rev. 8.1

Introduction

Freescale Semiconductor

1.5.21

Fault Collection and Control Unit (FCCU)

The FCCU module has the following features:

•

Redundant collection of hardware checker results

•

Redundant collection of error information and latch of faults from critical modules on the device

•

Collection of self-test results

•

Configurable and graded fault control

— Internal reactions (no internal reaction, IRQ, Functional Reset, Destructive Reset, or Safe mode entered)

— External reaction (failure is reported to the external/surrounding system via configurable output pins)

1.5.22

System Integration Unit Lite (SIUL)

The SIUL controls MCU reset configuration, pad configuration, external interrupt, general purpose I/O (GPIO), internal

peripheral multiplexing, and system reset operation. The reset configuration block contains the external pin boot configuration

logic. The pad configuration block controls the static electrical characteristics of I/O pins. The GPIO block provides uniform

and discrete input/output control of the I/O pins of the MCU.

The SIU provides the following features:

•

Centralized pad control on a per-pin basis

— Pin function selection

— Configurable weak pull-up/down

— Configurable slew rate control (slow/medium/fast)

— Hysteresis on GPIO pins

— Configurable automatic safe mode pad control

•

Input filtering for external interrupts

1.5.23

Non-Maskable Interrupt (NMI)

The non-maskable interrupt with de-glitching filter supports high-priority core exceptions.

1.5.24

Boot Assist Module (BAM)

The BAM is a block of read-only memory with hard-coded content. The BAM program is executed only if serial booting mode

is selected via boot configuration pins.

The BAM provides the following features:

•

Enables booting via serial mode (FlexCAN or LINFlex-UART)

•

Supports programmable 64-bit password protection for serial boot mode

•

Supports serial bootloading of either Power Architecture code (default) or Freescale VLE code

•

Automatic switch to serial boot mode if internal flash memory is blank or invalid

1.5.25

System Status and Configuration Module (SSCM)

The SSCM on this device features the following:

•

System configuration and status

•

Debug port status and debug port enable

•

Multiple boot code starting locations out of reset through implementation of search for valid Reset Configuration Half

Word

MPC5643L 数据表(PDF) 14 Page - Freescale Semiconductor, Inc

MPC5643L 数据表(HTML) 14 Page - Freescale Semiconductor, Inc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表下载