參數(shù)資料
型號(hào)： TVP5041PFP
廠商： TEXAS INSTRUMENTS INC
元件分類： 顏色信號(hào)轉(zhuǎn)換
英文描述： COLOR SIGNAL DECODER, PQFP80
封裝： POWER, PLASTIC, TQFP-80
文件頁(yè)數(shù)： 38/106頁(yè)
文件大?。?/td> 501K
代理商： TVP5041PFP
2–21
2.7.4
I2C Microcode Write Operation
A microcode write operation is required to down load microcode to the TVP5041 program RAM after power-up reset.
During the write cycle the internal microprocessors program counter resets and points to location zero in the program
RAM and remains reset. Upon completion of the write operation, a microprocessor CLEAR-RESET operation is
required. This is performed by writing into the 7F register to clear reset and resume microprocessor function. (There
is no specific data requirement to be written into the 7F register, any data will resume 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 Write register address (master)
0
1
0
Write to program RAM address=7E
STEP 5
9
I2C Acknowledge (slave)
A
STEP 6
7
6
5
4
3
2
1
0
I2C Write data (master)
Data
STEP 7
9
I2C Acknowledge (slave)
A
STEP 8
0
I2C Stop (master)
P
Repeat steps 6 and 7 until all data has been written.
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