USBB17AP77016-XXX-B11 NEC Electronics, USBB17AP77016-XXX-B11 Datasheet - Page 63

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

A.3 Sample Timing Files
A.3.1
The input data file name on the 10th line should be changed to accord with the input data file prepared by the user.
;;-----------------------------------------------------------------;;
;;
;;-----------------------------------------------------------------;;
local data
;;-----------------------------------------------------------------;;
;;
;;-----------------------------------------------------------------;;
open input "sample_20_16s.dat"
output format showbase unsigned hex, ; select output format
;;------------------------------------------------------------------;;
;;
;;------------------------------------------------------------------;;
;;------------------------------------------------------------------;;
;;
;;------------------------------------------------------------------;;
This timing file fetches data from the input data file (sample_20_16s.dat) and inputs data via the host interface.
do
smp_input.tmg
Declare Variables
File Open
Init
set pin hcs = 1
set pin hwr = 1
set pin hrd = 1
Main Input Loop
wait cond pin hwe == 0
wait cond pin hcs == 1
set pin hcs = 0
set port ha = 0
set pin hwr = 0
input data
set port hd = data&0xFF
wait 100ns
set pin hcs = 1
set pin hwr = 1
wait 5ns
set port ha = 1
wait 5ns
set pin hwr = 0
APPENDIX A SAMPLE PROGRAM SOURCE
User’s Manual U15683EJ1V0UM
; local variable receives data
; terminate any write access, which might
; be active
;
;
; wait till write is allowed
;
; perform the access...
; select higher byte of HDT
; start input
; input host data to temp variable
; input low byte to host port
; access duration
; terminate first access...
; end output
; delay
; select higher byte of HDT
; delay
; start output
and no read is in progress
(1/2)
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