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參數(shù)資料
| 型號： | TVP5040PFP |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 顏色信號轉(zhuǎn)換 |
| 英文描述： | COLOR SIGNAL DECODER, PQFP80 |
| 封裝： | POWER, PLASTIC, TQFP-80 |
| 文件頁數(shù)： | 35/101頁 |
| 文件大?。?/td> | 464K |
| 代理商： | TVP5040PFP |
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2–23
2.7.6
I2C Microcode Read Operation
The data written during the microcode write operation can be read from the TVP5040 program RAM. During the read
cycle the microprocessor will reset and point to location zero in the program and will remain reset. Upon completion
of the read operation, a microprocessor CLEAR-RESET operation is required. This is performed by writing into the
7F register to clear reset and resume the microprocessor function. (There is no specific data requirement to be written
into the 7F register, any data will resume the microprocessor function.)
STEP 1
0
I2C Start (master)
S
STEP 2
7
6
5
4
3
2
1
0
I2C General address (master)
1
0
1
0
X
0
STEP 3
9
I2C Acknowledge (slave)
A
STEP 4
7
6
5
4
3
2
1
0
I2C Read register address (master)
1
0
1
0
Read address=8E
STEP 5
9
I2C Acknowledge (slave)
A
STEP 6
0
I2C Stop (master)
P
2.7.6.1 Read Phase 2:
STEP 7
0
I2C Start (master)
S
STEP 8
7
6
5
4
3
2
1
0
I2C General address (master)
1
0
1
0
X
1
STEP 9
7
I2C Acknowledge (slave)
A
STEP 10
7
6
5
4
3
2
1
0
I2C Read data (slave)
Data
STEP 11
7
I2C Acknowledge (master)
A
Repeat STEP 10 and STEP 11 for all but the last byte read from program RAM.
STEP 12
7
6
5
4
3
2
1
0
I2C Read data (slave)
Data
STEP 13
9
I2C Not acknowledge (master)
A
STEP 14
0
I2C Stop (master)
P
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