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ST7FLCD1 数据表(PDF) 65 Page - STMicroelectronics

部件名 ST7FLCD1
功能描述  8-bit MCU for LCD Monitors with 60 KBytes Flash,2 KBytes RAM, 2 DDC Ports and Infrared Controller
PDF  95 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

ST7FLCD1 数据表(HTML) 65 Page - STMicroelectronics

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ST7FLCD1
Display Data Channel Interfaces (DDC)
Random address read: The master performs a dummy write to load the data address into the
pointer LSB. Then the master sends a RESTART condition followed by a read Device Address (RW
= 1).
Sequential address read: This mode is similar to the current and random address reads, except
that the master DOES acknowledge the data byte for the DDC2B Interface to output the next byte in
sequence. To terminate the read operation the master must NOT acknowledge the last data byte
and must generate a STOP condition. The data output are issued from consecutive memory
addresses.
End of communication: Upon a detection of NACK or STOP conditions at the end of a read
transfer, the bit ENDCF is set and an interrupt is generated if ENDCE is set.
Figure 38: Read Sequences
DATA OUT
DEV ADDR
SDA
ADDR
ADDR + 1
Addr.
Pointer
DATA ADDR.
DEV ADDR
SDA
XXXXh
ADDR
Addr.
Pointer
ADDR + 1
DATA OUT
DEV ADDR
DATA OUT 1
DEV ADDR
SDA
ADDR
Addr.
Pointer
DATA OUT 2
DATA OUT n
ADDR + n -1
ADDR + 1
ADDR + n
Current Address Read
Random Address Read
Sequential Address Read
ENDCF flag is set
ENDCF flag is set
ENDCF flag is set
or
or
or



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