參數(shù)資料
型號(hào): tda 6920
廠商: SIEMENS AG
英文描述: 7 x 5 Video Matrix Switch(視頻陣列開關(guān))
中文描述: 7 × 5視頻矩陣開關(guān)(視頻陣列開關(guān))
文件頁(yè)數(shù): 24/27頁(yè)
文件大小: 555K
代理商: TDA 6920
Reference
5 - 6
TDA 6920
Wireless Components
Specification, August 1999
5.4
Data Mode Selections (fast I2C-Bus) continued
2nd byte of transmission ( 8 bit )
5.5
BUS Protocol ( fast I
2
C-BUS )
Programming Example : SDA sequence
Table 5-8 Input selection non clamped / Y+C (Y:always clamped;
C:non clamped) ; (3 bit, bit 7 should always be 0)
b7 b6
b5 b4 b3
*
*....
X = don’ t care (if only input operation mode change is requested, b5, b4,
b3 should be 0, 0, 0 : no output configuration is changed.)
b2 b1 b0
selected input
0 0
x x x
0 0 1
in1, (Y+C) off
0 0
x x x
0 1 0
in2, clamp on
0 0
x x x
0 1 1
in3, clamp on
0 0
x x x
1 0 0
in4, clamp on
0 1
x x x
0 0 1
in1, (Y+C) on
0 1
x x x
0 1 0
in2, clamp off
0 1
x x x
0 1 1
in3, clamp off
0 1
x x x
1 0 0
in4, clamp off
start
condition
address 96H
1st data : output 4 connect
to input 3 clamped
MSB
LSB
...........
mode
output
input
1 0
1 0 0 1 0 1 1 0
0 0
1 0 0
0 1 1
data : output 5 connect to
input 1 (Y + C)
last data : output 1 connect
to input 4 not clamped
stop
condition
...........
mode
output
input
...........
mode
output
input
0 1
1 0 1
0 0 1
0 1
0 0 1
1 0 0
0 1
serial data stream
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