 |
数据搜索系统，热门电子元器件搜索 |
|
|
数据搜索系统，热门电子元器件搜索 |
|
DSP56303 数据表(PDF) 229 Page - Freescale Semiconductor, Inc |
|
|
|||||||||||||||||||||||||||||
DSP56303 数据表(HTML) 229 Page - Freescale Semiconductor, Inc |
|
|
229 / 292 page  Bootstrap Code DSP56303 User’s Manual, Rev. 2 Freescale Semiconductor A-7 movepx:M_HRX,p:(r0)+ ; Move the new word into its destination ; location in the program RAM HI08LOOP bra<FINISH ;======================================================================== EPRSCILD jclr #1,omr,EPROMLD ; If MC:MB:MA=001, go load from EPROM ;======================================================================== ; This is the routine that loads from the SCI. ; MC:MB:MA=010 - external SCI clock SCILD movep #$0302,X:M_SCR ; Configure SCI Control Reg movep #$C000,X:M_SCCR ; Configure SCI Clock Control Reg movep #7,X:M_PCRE ; Configure SCLK, TXD and RXD do #6,_LOOP6 ; get 3 bytes for number of ; program words and 3 bytes ; for the starting address jclr #2,X:M_SSR,* ; Wait for RDRF to go high movep X:M_SRXL,A2 ; Put 8 bits in A2 jclr #1,X:M_SSR,* ; Wait for TDRE to go high movep A2,X:M_STXL ; echo the received byte asr #8,a,a _LOOP6 move a1,r0 ; starting address for load move a1,r1 ; save starting address do a0,_LOOP7 ; Receive program words do #3,_LOOP8 jclr #2,X:M_SSR,* ; Wait for RDRF to go high movep X:M_SRXL,A2 ; Put 8 bits in A2 jclr #1,X:M_SSR,* ; Wait for TDRE to go high movep a2,X:M_STXL ; echo the received byte asr #8,a,a _LOOP8 movem a1,p:(r0)+ ; Store 24-bit result in P mem. _LOOP7 bra <FINISH ; Boot from SCI done ;======================================================================== ; This is the routine that loads from external EPROM. ; MC:MB:MA=001 EPROMLD move #BOOT,r2 ; r2 = address of external EPROM movep #AARV,X:M_AAR1 ; aar1 configured for SRAM types of access do #6,_LOOP9 ; read number of words and starting address |
|
链接网址 |
| ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 数据表链接 | 链接交换 | 制造商名单 All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
Chinese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
