Bootstrap ROM Contents
MOTOROLA
DSP56367
A-9
; 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
I8051HOSTLD
movep #%0001110000011110,x:M_HPCR
; Configure the following conditions:
; HAP = 0 Negative host acknowledge
; HRP = 0 Negatice host request
; HCSP = 0 Negatice chip select input
; HDDS = 1 Dual strobes bus (RD and WR)
; HMUX = 1 Multiplexed bus
; HASP = 1 Positive address strobe polarity
; 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 = 0 Host acknowledge is disabled
; HREN = 1 Host requests are enabled
; HCSEN = 1 Host chip select input enabled
; HA9EN = 1 Enable address 9 input
; HA8EN = 1 Enable address 8 input
; HGEN = 0 Host GPIO pins are disabled
HDI08CONT
bset #HEN,x:M_HPCR ; Enable the HDI08 to operate as host
; interface (set HEN=1)
jclr #HRDF,x:M_HSR,* ; wait for the program length to be
; written
movep x:M_HORX,a0
jclr #HRDF,x:M_HSR,* ; wait for the program starting address
; to be written
movep x:M_HORX,r0
move r0,r1
do a0,HDI08LOOP ; set a loop with the downloaded length
HDI08LL
jset #HRDF,x:M_HSR,HDI08NW ; If new word was loaded then jump to
; read that word
jclr #HF0,x:M_HSR,HDI08LL ; If HF0=0 then continue with the
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: ......