EB632 datasheet(86/112 Pages) FREESCALE

Part #	EB632

Description	Functional Differences Between MSC8101 (Mask 2K42A) and MSC8103 (Mask 2K87M)

PDF	112 Pages

Scroll/Zoom	100%

Manufacturer	FREESCALE [Freescale Semiconductor, Inc]

Direct Link	http://www.freescale.com

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Functional Differences Between MSC8101 (Mask 2K42A) and MSC8103 (Mask 2K87M), Rev. 2

Freescale Semiconductor

Bootloader Program

extractu #2,#17,d1,d3 ;get EE4,EE5 -> d3

nop

cmpeq.w #$3,d3

jt to_boot_bypass

move.l emr,d1

extractu #3,#19,d1,d3

; d3 xor 3'b100 to recover original isb

eor #$4,d3.l

nop

move.l d3,d13; Added for serial BOOT

jmp find_siubase

return_find_siu

; SRAM INIT

jmp sram_init

return_sram_init

; initialize ELIRE

move.w #$8000,d0

nop

move.w d0,ELIRE

; initialize ELIRF

move.w #$0008,d0

nop

move.w d0,ELIRF

;check the scmr to see which upm routine to load

move.l (r6+$c88),d1

;scmr,d1

; extract the busdf from scmr

extractu #4,#20,d1,d3

jmp upmc_init

check_boot

move.l emr,d1

;get EE4,EE5 -> d3

extractu #2,#17,d1,d3

nop

cmpeq.w #$0,d3

jt external_memory

cmpeq.w #$1,d3

jt from_host

cmpeq.w #$2,d3;added for serial boot

jt from_serial

cmpeq.w #$3,d3;added for serial boot

jt to_boot_bypass

stop

external_memory

;d3 <- isb[0,1,2]

extractu #3,#19,d1,d3

; d3 xor 3'b100 to recover original isb

eor #$4,d3.l

;r3 <- d3

EB632 Datasheet(PDF) 86 Page - Freescale Semiconductor, Inc

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