參數(shù)資料
型號: MR80C52CXXX-20
廠商: TEMIC SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 20 MHz, MICROCONTROLLER, CQCC44
文件頁數(shù): 148/170頁
文件大小: 25028K
代理商: MR80C52CXXX-20
231
8272E–AVR–04/2013
ATmega164A/PA/324A/PA/644A/PA/1284/P
Figure 21-16. Formats and states in the Slave Receiver mode.
21.7.4
Slave Transmitter mode
In the Slave Transmitter mode, a number of data bytes are transmitted to a Master Receiver
(see Figure 21-17). All the status codes mentioned in this section assume that the prescaler bits
are zero or are masked to zero.
Figure 21-17. Data transfer in Slave Transmitter mode.
S
SLA
W
A
DATA
A
$60
$80
$88
A
$68
Reception of the own
slave address and one or
more data bytes. All are
acknowledged
Last data byte received
is not acknowledged
Arbitration lost as master
and addressed as slave
Reception of the general call
address and one or more data
bytes
Last data byte received is
not acknowledged
n
From master to slave
From slave to master
Any number of data bytes
and their associated acknowledge bits
This number (contained in TWSR) corresponds
to a defined state of the Two-Wire Serial Bus. The
prescaler bits are zero or masked to zero
P or S
DATA
A
$80
$A0
P or S
A
ADATAA
$70
$90
$98
A
$78
P or S
DATA
A
$90
$A0
P or S
A
General Call
Arbitration lost as master and
addressed as slave by general call
DATA
A
Device 3
Device n
SDA
SCL
........
R1
R2
V
CC
Device 2
MASTER
RECEIVER
Device 1
SLAVE
TRANSMITTER
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