LFEBS12UB Freescale Semiconductor, LFEBS12UB Datasheet - Page 467
![KIT STUDENT LEARNING S12 DG128](/photos/39/51/395102/4606125_sml.jpg)
LFEBS12UB
Manufacturer Part Number
LFEBS12UB
Description
KIT STUDENT LEARNING S12 DG128
Manufacturer
Freescale Semiconductor
Specifications of LFEBS12UB
Architecture
8/16-bit
Code Gen Tools Included
Code Warrior
Silicon Manufacturer
Freescale
Core Architecture
S12
Core Sub-architecture
S12
Silicon Core Number
MC9S12
Silicon Family Name
S12D
Kit Contents
HCS12 DG128 Learning Kit
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- Current page: 467 of 1328
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INIT_SCI
INIT_INT
INIT_XGATE
INIT_XGATE_BUSY_LOOP
INIT_XGATE_VECTAB_LOOP
COPY_XGATE_CODE
COPY_XGATE_CODE_LOOP
Freescale Semiconductor
Because of an order from the United States International Trade Commission, BGA-packaged product lines and partnumbers
indicated here currently are not available from Freescale for import or sale in the United States prior to September 2010
;###########################################
;#
;###########################################
SEI
MOVB #(RAM_START_GLOB>>12), RPAGE
;###########################################
;#
;###########################################
MOVW #(BUS_FREQ_HZ/(16*9600)), SCIBDH;set baud rate
MOVB #(TIE|TE), SCICR2;enable tx buffer empty interrupt
;###########################################
;#
;###########################################
MOVB #(SCI_VEC&$F0), INT_CFADDR
MOVB #RQST|$01, INT_CFDATA+((SCI_VEC&$0F)>>1)
;###########################################
;#
;###########################################
MOVW #XGMCTL_CLEAR, XGMCTL
TST
BNE
LDX
LDD
STD
STD
STD
STD
STD
STD
STD
STD
CLR
MOVW #XGATE_VECTORS_XG, XGVBR
MOVW #$FF00, XGSWT
;###########################################
;#
;###########################################
LDAA #128
LDY
MOVW #XGATE_DUMMY_ISR_XG, 4,Y+
DBNE A, INIT_XGATE_VECTAB_LOOP
MOVW #XGATE_CODE_XG, RAM_START+(2*SCI_VEC)
MOVW #XGATE_DATA_XG, RAM_START+(2*SCI_VEC)+2
;###########################################
;#
;###########################################
LDX
MOVW 2,X+, 2,Y+
MC9S12XE-Family Reference Manual Rev. 1.23
XGCHID
INIT_XGATE_BUSY_LOOP
#XGIF
#$FFFF
2,X+
2,X+
2,X+
2,X+
2,X+
2,X+
2,X+
2,X+
XGISPSEL
#XGATE_VECTORS
#XGATE_DATA_FLASH
INITIALIZE XGATE VECTOR TABLE
INITIALIZE S12XE CORE
INITIALIZE S12X_INT
INITIALIZE XGATE
INITIALIZE SCI
COPY XGATE CODE
;wait until current thread is finished
;clear all channel interrupt flags
;set vector base register
;clear all software triggers
;build XGATE vector table
;set RAM page
;switch SCI interrupts to XGATE
;clear all XGMCTL bits
#
#
#
#
#
#
Chapter 10 XGATE (S12XGATEV3)
467
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