M65762FP Datasheet, PDF (21/35 Pages) Mitsubishi Electric Semiconductor – QM-CODER(purpose of reducing)

M65762FP
3
Set AT pixel position
Set number of lines
Processing start command
(termination end processing)
Set interrupt enable
PARA_REG: a" a" t a" a" a" a" a"
LSET_REG_L:
LSET_REG_H:
lset_l
lset_h
CMD_REG: 0 0 0 0 0 0 1 0
IENB_REG: 0 0 0 0 0 0 0 1
; Set change in final AT pixel.
(a"a", a"a"a"a"a")
Note: Template is not allowed to be changed
; lset_l, lset_h = Number of processing lines
Note: Enter the number of processing lines
ranging from restart of processing to the
final line.
; Termination end processing
(coding/decoding)
Start command
; Process stop interrupt enable
[Performs coding/decoding processing during this period.]−−−Inputs/outputs final image data and coding data.
Note: During coding in the final processing, (number of lines in input image data) = (value set in the line count
set register) − 1. During decoding, (number of lines in output image data) = (value set in the line count
(Occurrence of interrupt) ^{set register) + 1.}
Set interrupt disable
d7
d0
IENB_REG: 0 0 0 0 0 0 0 0 ; Interrupt disable
Read out status register
(check end of processing)
STAT_REG: − − − s − m − j
j=1?
Y
Decoding ?
N
(Error)
N (Encoding)
; j = End of processing
; m = Marker detection
; s = SC counter over error
Y (Decoding)
m=1?
N (Marker not detected)
(Error)
Y (Marker detection)
s=0?
Y
End
N (SC counter over)
(Error)
Read out marker code
(Note: Decoding only)
MDET_REG:
mdet
; mdet = Read marker code
End
(4) Load/store processing sequence of the context table RAM
This sequence is used to load or store context table RAM.
RAM load/store start
command
d7
d0
CMD_REG: 0 0 0 0 0 0 0 0 ; Starts to load/store context table RAM
[Stores (loads) the context table RAM during this period.]
Context RAM data is stored (loaded) via buffer register.
Reading (writing) 2 bytes automatically increments the RAM address.
Note: Reading (storing) operation and writing (loading) operation are not allowed to be done at a time.
End of RAM
load/store command
CMD_REG: 0 0 0 0 0 1 0 0
; End of loading/storing RAM
Since the operation does not automatically stop,
be sure to write the load/store end command.
REJ03F0235-0200 Rev.2.00 Sep 14, 2007
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