m65761fp Renesas Electronics Corporation., m65761fp Datasheet - Page 8

• Manufacturer Part Number: m65761fp
• Description: Assp>ics For Audio Accessory>karaoke Processors Qm-coder
• Manufacturer: Renesas Electronics Corporation.

M65761FP
(5) Coding Data Format
(6) Marker Code
(7) Rough Estimate of Coding and Decoding Time
REJ03F0234-0200 Rev.2.00 Sep 14, 2007
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• The Stripe Data Entity (SDE) (= Stripe coded data with byte stuffing (PSCD) + end marker (SDNORM /
• The SDE end marker is supported. (SDNORM = 02h, SDRST = 03h, ABORT = 04h)
• The total number of clocks needed for coding and decoding 1 page (stripe) is calculates roughly using the
T1 ≈ (p Lp) + (9/8 C) + ( Lp)
–S ((1 – ) p Ltp – Lp) [clock]
T2 ≈ (p Lp) + (9/8 C)
–S ((p Ltp) – Lp)) [clock]
(T1: M65761FP as a Whole, T2: Processing Time of the Arithmetic Coding Section Alone)
SDRST)) Coding/decoding of one stripe portion as performed. In case of the multi-striped (construct the
multi stripes) stripes are activated one at a time.
(During coding the marker code previously set in the register is outputted. During decoding, the marker code
detected by requesting an interrupt to MPU when the marker is detected is read out of register.)
following equations.
p:
Lp:
Ltp:
C:
S = 1: TP exists
Number of pixels/line
Number of lines/page
Number of TP line/page
Number of coded data bits/page
0: No TP
: about 0.3
: about 10