USBB17AP77016-XXX-B11 NEC Electronics, USBB17AP77016-XXX-B11 Datasheet - Page 66

• Manufacturer Part Number: USBB17AP77016-XXX-B11
• Description: DSP middleware(WMA (Windows Media Audio)decoder)
• Manufacturer: NEC Electronics

66
close output #3
;;----------------------------------------------------------------------;;
;;
;;----------------------------------------------------------------------;;
do
;;----------------------------------------------------------------------;;
;;
;;----------------------------------------------------------------------;;
;;----------------------------------------------------------------------;;
;;
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wait cond pin sck1 == 0
wait cond pin sck1 == 1
if pin soen1 == 0
endif
wait cond pin sorq1 == 0
set pin soen1 = 0
rept 15
endrept
wait 5ns
output #1 port so1&0xFFFF
if pin sorq1 == 1
endif
wait cond pin sck1 == 0
wait cond pin sck1 == 1
if pin soen1 == 0
endif
wait cond pin sorq1 == 0
set pin soen1 = 0
Main Output Loop
For ch 1
wait cond pin sorq1 == 1
wait 5 ns
set pin soen1 = 1
wait cond pin sck1 == 0
wait cond pin sck1 == 1
set pin soen1 = 1
For ch 2
wait cond pin sorq1 == 1
wait 5 ns
set pin soen1 = 1
APPENDIX A SAMPLE PROGRAM SOURCE
User’s Manual U15683EJ1V0UM
; wait for rising edge (0->1)
;
;
; do only if new transmission start
; wait for serial output request
; logic delay
; start serial output
; wait for serial output start confirmation
;
; wait 15 clock cycles for one data frame
;
;
;
; make sure SO1 and SORQ1 are updated
; write output data to file, mask sign bits
; request next output
; start next serial output
; wait for rising edge (0->1)
;
; do only if new transmission start
; wait for serial output request
; logic delay
; start serial output
; wait for serial output start confirmation
;
wait for rising edge (0->1)
(2/3)