參數(shù)資料
型號(hào): ST7FLCD1G9M1
廠商: STMICROELECTRONICS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PDSO28
封裝: ROHS COMPLIANT, SO-28
文件頁數(shù): 62/96頁
文件大小: 846K
代理商: ST7FLCD1G9M1
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
STA
R
T
R/W
AC
K
DATA OUT
NO
ACK
STO
P
DEV ADDR
SDA
ADDR
ADDR + 1
Addr.
Pointer
START
R/W
ACK
DATA ADDR.
ACK
DEV ADDR
SDA
XXXXh
ADDR
Addr.
Pointer
ADDR + 1
R/W
ACK
DATA OUT
NO
ACK
STO
P
DEV ADDR
STA
R
T
R/W
ACK
DATA OUT 1
DEV ADDR
SDA
ADDR
Addr.
Pointer
DATA OUT 2
AC
K
DATA OUT n
ACK
STO
P
NO
A
C
K
ADDR + n -1
ADDR + 1
ADDR + n
Current Address Read
Random Address Read
Sequential Address Read
RE
START
ENDCF flag is set
or
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