參數(shù)資料
型號(hào)： SAA7140B
廠商： NXP SEMICONDUCTORS
元件分類(lèi)： 消費(fèi)家電
英文描述： High Performance Scaler HPS
中文描述： SPECIALTY CONSUMER CIRCUIT, PQFP128
文件頁(yè)數(shù)： 31/68頁(yè)
文件大?。?/td> 432K
代理商： SAA7140B
1996 Sep 04
31
Philips Semiconductors
Objective specification
High Performance Scaler (HPS)
SAA7140A; SAA7140B
Fig.17 Output port transfer to VRAM at 32-bit data format without scaling.
If VCLK cycles occur at VOEN = HIGH the FIFO register is unchanged but the outputs VRO31 to VRO0 remain in the 3-state position.
(1) Only valid for non-zoomed data.
handbook, full pagewidth
minimum 8 words
available in FIFO
maximum 32LLC
(1)
(16 PIXCLK)
1 transfer cycle
(8 VCLK cycles)
7
0
1
2
3
4
5
6
7
7
8
9
8
8
7
6
6
5
4
4
(LLC/2)
FIFO memory
filling level
HFL
VCLK
VOEN
VRO(n)
MHA132
Fig.18 Vertical reset timing of the VRAM port.
(1) Only available for interfaced processing at the beginning of an odd field.
handbook, full pagewidth
vertical blanking
active
video
last half-full request for line n
(1)
(1)
line n
INTERNAL
SIGNAL
line n + 1
64LLC
line increment sequence (1)
vertical reset pulse
10LLC
64LLC
minimum set-up time
HFL
INCADR
MHA123
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