Freescale semiconductor, i, Freescale semiconductor, inc – Motorola M68EZ328ADS User Manual
Page 52
Monitor Initialization Code
D-51
M68EZ328ADS v2.0 USER’S MANUAL
MOTOROLA
;
; Initialize I/O to avoid contention
;
;**********************************************************************
;
TBD since the contention does not affect ADS operation
;**********************************************************************
;
; Program Interrupt Controller
;
;**********************************************************************
move.b #$40,IVR
move.l #$007FFFFF,IMR
;enable NMI interrupt
endm
; **************************************************
;
Soft reset macro - contains instructions
;
which must be executed upon a processor reset.
; **************************************************
RESET_SOFT:
macro
; ***************************************
; * Setting for MC68681
; ***************************************
.if "\{DEV_IN}"=="MC68681"
MC68681ctur
equ
(BASE_IN+OFF6)
MC68681ctlr
equ
(BASE_IN+OFF7)
move.b #IRQ_MASK,MC68681imr
;set value of IMR
move.b #ACR_VAL,MC68681acr
;set value of ACR
; Setting for baudrates = 57600bps
move.b #00,MC68681ctur
move.b #02,MC68681ctlr ; divider=2
.endif
endm
****************************************************************************
*
OTHER DEFINITIONS
****************************************************************************
USER_DEFS:
macro
; ***************************************
; * Setting for MC68681
; ***************************************
.if "\{DEV_IN}"=="MC68681"
xdef
MC68681acr
xdef
MC68681imr
SECTION
usr_ram
MC68681acr: ds.b 1 ;ACR register
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ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005
ARCHIVED BY FREESCALE SEMICONDUCT
OR,
INC.
2005