Datasheet

56F8355 Technical Data, Rev. 17

72 Freescale Semiconductor

Preliminary

4.8 Factory Programmed Memory

4.8.1 Serial Bootloader

The Boot Flash memory block is programmed during manufacturing with a default Serial Bootloader

program. The Serial Bootloader application can be used to load a user application into the Program and

Data Flash (NOT available in the 56F8155) memories of the device. The 56F83xx SCI/CAN Bootloader

User Manual (MC56F83xxBLUM) provides detailed information on this firmware. An application note,

Production Flash Programming (AN1973), details how the Serial Bootloader program can be used to

perform production Flash programming of the on board flash memories as well as other potential methods.

Like all the Flash memory blocks, the Boot Flash can be erased and programmed by the user. The Serial

Bootloader application is programmed as an aid to the end user, but is not required to be used or maintained

in the Boot Flash memory.

The Boot Flash memory block also includes the ADC calibration vector.

Part 5 Interrupt Controller (ITCN)

5.1 Introduction

The Interrupt Controller (ITCN) module is used to arbitrate between various interrupt requests (IRQs), to

signal to the 56800E core when an interrupt of sufficient priority exists, and to what address to jump in

order to service this interrupt.

FCMB14_DATA $B5 Message Buffer 14 Data Register

FCMB14_DATA $B6 Message Buffer 14 Data Register

Reserved

FCMB15_CONTROL $B8 Message Buffer 15 Control / Status Register

FCMB15_ID_HIGH $B9 Message Buffer 15 ID High Register

FCMB15_ID_LOW $BA Message Buffer 15 ID Low Register

FCMB15_DATA $BB Message Buffer 15 Data Register

FCMB15_DATA $BC Message Buffer 15 Data Register

FCMB15_DATA $BD Message Buffer 15 Data Register

FCMB15_DATA $BE Message Buffer 15 Data Register

Reserved

Table 4-38 FlexCAN Registers Address Map (Continued)

(FC_BASE = $00 F800)

FlexCAN is NOT available in the 56F8155 device