M66335FP Datasheet, PDF (33/57 Pages) Mitsubishi Electric Semiconductor – FACSIMILE IMAGE DATA PROCESSOR

MITSUBISHI 〈DIGITAL ASSP〉
M66335FP
FACSIMILE IMAGE DATA PROCESSOR
Address R/W
0CH
W
Description
D7
D6
D5
D4
D3
D2
D1
D0
MAX_UP
MAX_DOWN
MIN_UP
(Default value : 00H)
D5 D4 MAX_UP : background level detection Clock for the up counter
00
Ordinary (T = (single pixel cycle) × 32)
01
Slow (T = (single pixel cycle) × 64)
10
Fast (T = (single pixel cycle) × 16)
11
Fastest (T = (single pixel cycle) × 8)
D3 D2 MAX_DOWN : background level detection Clock for the down counter
00
Ordinary (T = (single pixel cycle) × 128)
01
Slow (T = (single pixel cycle) × 256)
10
Fast (T = (single pixel cycle) × 64)
11
Fastest (T = (single pixel cycle) × 32)
D1 D0
00
01
10
11
MIN_UP : character level detection Clock for the up counter
Ordinary (T = (single pixel cycle) × 128)
Slow (T = (single pixel cycle) × 256)
Fast (T = (single pixel cycle) × 64)
Fastest (T = (single pixel cycle) × 32)
0DH
W
D7
D6
D5
D4
D3
D2
D1
D0
UL_MIN
(Default value : 1FH)
D5 to D0 : UL_MIN Detection of background/character levels
Highest limit of character levels
0EH
W
D7
D6
D5
D4
D3
D2
D1
D0
LL_MAX
(Default value : 20H)
D5 to D0 : LL_MAX Detection of background/character levels
Lowest limit of background levels
Lowest limit of background levels (LL_MAX) > highest limit of character levels (UL_MIN)
0FH
R/W
D7
D6
D5
D4
D3
D2
D1
D0
GAMMA_D <5 : 0>
D5 to D0 : GAMMA_D Built-in γ memory data
10H
R/W
D7
D6
D5
D4
D3
D2
D1
D0
DITH_D <5 : 0>
D5 to D0 : DITH_D Built-in dither memory data
33