Chrontel CH7034B Примітки щодо застосування - Сторінка 7
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Data Inputs
CH7034B can accept up to 24 data inputs, as shown in Figure 8, from a digital video port of a graphics controller.
The swing is defined by VDDIO (1.2 ~ 3.3V).
Unused Data input pins should be pulled low with 10kΩ resistors or shorted to Ground directly.
H/V Sync Pins
The horizontal/vertical sync pins can be used as inputs as shown in Figure 8.
DE/CSB
The DE/CSB pin is used as a data input indicator (Refer to Figure 8). When the pin is high, the input data is active.
When the pin is low, the input data is blanking.
If DE/CSB is not used, it can be left open or pulled down to the Ground.
GCLK
The GCLK input is the clock signal input to the device for using with the H, V, DE and D [23:0] data.
2.6
Miscellaneous Pins
• IRQ
This pin should be connected with graphic controller directly.
2.7
Video Output
206-1000-013
Rev1.4,
Graphics
Controller
Figure 8: CH7034B Data Input Pins
06/30/2020
82
GCLK
29
D[0]
28
D[1]
27
D[2]
26
D[3]
25
D[4]
21
D[5]
20
D[6]
19
D[7]
18
D[8]
17
D[9]
QFN
16
D[10]
15
D[11]
14
D[12]
13
D[13]
12
D[14]
8
D[15]
6
D[16]
5
D[17]
4
D[18]
3
D[19]
2
D[20]
1
D[21]
88
D[22]
87
D[23]
86
H/WEB
85
V
84
DE/CSB
AN-B013
7