Bootstrap ROM Contents
MOTOROLA
DSP56367
A-7
; 3) 3n bytes (while n is the program length defined by the 3 first bytes)
; The program words will be stored in contiguous PRAM memory locations starting
; at the specified starting address.
; After reading the program words, program execution starts from the same
; address where loading started.
; The host MCU may terminate the loading process by setting the HF1=0 and HF0=1.
; When the downloading is terminated, the program will start execution of the
; loaded program from the specified starting address.
; The HDI08 boot ROM program enables the following busses to download programs
; through the HDI08 port:
;
; C - ISA - Dual strobes non-multiplexed bus with negative strobe
; pulses dual positive request
; D - HC11 - Single strobe non-multiplexed bus with positive strobe
; pulse single negative request.
; E - i8051 - Dual strobes multiplexed bus with negative strobe pulses
; dual negative request.
; F - MC68302 - Single strobe non-multiplexed bus with negative strobe
; pulse single negative request.
;========================================================================
MC68302HOSTLD
movep #%0000000000111000,x:M_HPCR
; Configure the following conditions:
; HAP = 0 Negative host acknowledge
; HRP = 0 Negative host request
; HCSP = 0 Negatice chip select input
; HDDS = 0 Single strobe bus (R/W~ and DS)
; HMUX = 0 Non multiplexed bus
; HASP = 0 (address strobe polarity has no
; meaning in non-multiplexed bus)
; HDSP = 0 Negative data stobes polarity
; HROD = 0 Host request is active when enabled
; spare = 0 This bit should be set to 0 for
; future compatability
; HEN = 0 When the HPCR register is modified
; HEN should be cleared
; HAEN = 1 Host acknowledge is enabled
; HREN = 1 Host requests are enabled
; HCSEN = 1 Host chip select input enabled
; HA9EN = 0 (address 9 enable bit has no
; meaning in non-multiplexed bus)
; HA8EN = 0 (address 8 enable bit has no
; meaning in non-multiplexed bus)
; HGEN = 0 Host GPIO pins are disabled
bra <HDI08CONT
OMR1IS0
jset #MA,omr,HC11HOSTLD ; If MD:MC:MB:MA=1101, go load from HC11 Host
Summary of Contents for DSP56367
Page 16: ...xvi MOTOROLA CONTENTS Paragraph Number Title Page Number ...
Page 22: ...xxii MOTOROLA List of Figures Figure Number Title Page Number ...
Page 26: ...xxvi MOTOROLA List of Tables Table Number Title Page Number ...
Page 148: ...4 6 DSP56367 MOTOROLA Design Considerations PLL Performance Issues ...
Page 248: ...9 30 DSP56367 MOTOROLA Serial Host Interface SHI Programming Considerations ...
Page 306: ...10 58 DSP56367 MOTOROLA Enhanced Serial Audio Interface ESAI ESAI Initialization Examples ...
Page 389: ...Bootstrap ROM Contents MOTOROLA DSP56367 A 15 end ...
Page 390: ...A 16 DSP56367 MOTOROLA Bootstrap ROM Contents ...
Page 432: ...C 8 DSP56367 MOTOROLA JTAG BSDL ...
Page 484: ...D 52 DSP56367 MOTOROLA Programmer s Reference ...
Page 490: ...E 6 DSP56367 MOTOROLA Power Consumption Benchmark ...
Page 516: ...F 26 DSP56367 MOTOROLA IBIS Model ...
Page 522: ...Index 6 MOTOROLA Index ...
Page 523: ......