參數(shù)資料
型號(hào)： MTV018
廠商： Electronic Theatre Controls, Inc.
英文描述： IC TXRX PHY 10/100 3.3V 48LQFP
中文描述： 超級(jí)屏幕顯示器
文件頁(yè)數(shù)： 3/16頁(yè)
文件大?。?/td> 139K
代理商： MTV018
3/16
MTV018 Revision 4.0 10/21/1999
MTV018
MYSON
TECHNOLOGY
3.0 FUNCTIONAL DESCRIPTIONS
3.1 SERIAL DATA INTERFACE
The serial data interface receives data transmitted from an external controller. And there are 2 types of bus
can be accessed through the serial data interface, one is SPI bus and other is I
2
C bus.
3.1.1 SPI bus
While SSB pin is pulled to "high" or "low" level, the SPI bus operation is selected. And a valid transmission
should be starting from pulling SSB to "low" level, enabling MTV018 to receiving mode, and retain "low" level
until the last cycle for a complete data packet transfer. The protocol is shown in Figure 1.
PWM2
O
-
-
11
Open-Drain PWM D/A converter 2.
The output pulse width is pro-
grammable by the register of Row 15, Column 21.
Open-Drain PWM D/A converter 3.
The output pulse width is pro-
grammable by the register of Row 15, Column 22.
Open-Drain PWM D/A converter 4.
The output pulse width is pro-
grammable by the register of Row 15, Column 23.
Open-Drain PWM D/A converter 5.
The output pulse width is pro-
grammable by the register of Row 15, Column 24.
Open-Drain PWM D/A converter 6.
The output pulse width is pro-
grammable by the register of Row 15, Column 25.
Open-Drain PWM D/A converter 7.
The output pulse width is pro-
grammable by the register of Row 15, Column 26.
Digital power supply.
Positive 5 V DC supply for internal digital cir-
cuitry and a 0.1uF decoupling capacitor should be connected across
to VDD and VSS.
Vertical input.
This pin is used to input the vertical synchronizing sig-
nal. It is leading triggered and has an internal pull-up resistor.
Half tone output / PWM clock output.
This is a multiplexed pin
selected by PWMCK bit. This pin can be a PWM clock or used to
attenuate R, G, B gain of VGA for the transparent windowing effect.
Fast Blanking output.
It is used to cut off external R, G, B signals of
VGA while this chip is displaying characters or windows.
Blue color output.
It is a blue color video signal output.
Green color output.
It is a green color video signal output.
Red color output.
It is a red color video signal output.
Digital ground.
This ground pin is used to internal digital circuitry.
PWM3
O
-
-
12
PWM4
O
-
-
13
PWM5
O
-
-
14
PWM6
O
-
11
15
PWM7
O
-
12
16
VDD
-
9
13
17
VFLB
I
10
14
18
HTONE /
PWMCK
O
11
15
19
FBKG
O
12
16
20
BOUT
GOUT
ROUT
VSS
O
O
O
-
13
14
15
16
17
18
19
20
21
22
23
24
Name
I/O
Pin No.
Descriptions
N
N20
N24
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