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參數(shù)資料
| 型號： | M41T11MH6TR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 時鐘/數(shù)據(jù)恢復(fù)及定時提取 |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, PDSO28 |
| 封裝： | 0.330 INCH, SNAPHAT, PLASTIC, SOH-28 |
| 文件頁數(shù)： | 24/24頁 |
| 文件大小： | 355K |
| 代理商： | M41T11MH6TR |
9/24
M41T11
READ Mode
In this mode, the master reads the M41T11 slave
after setting the slave address (see Figure 10).
Following the write Mode Control Bit (R/W = 0) and
the Acknowledge Bit, the word address An is writ-
ten to the on-chip address pointer. Next the
START condition and slave address are repeated,
followed by the READ Mode Control Bit (R/W =1).
At this point, the master transmitter becomes the
master receiver. The data byte which was ad-
dressed will be transmitted and the master receiv-
er will send an Acknowledge Bit to the slave
transmitter. The address pointer is only increment-
ed on reception of an Acknowledge Bit. The
M41T11 slave transmitter will now place the data
byte at address An + 1 on the bus. The master re-
ceiver reads and acknowledges the new byte and
the address pointer is incremented to An + 2.
This cycle of reading consecutive addresses will
continue until the master receiver sends a STOP
condition to the slave transmitter.
An alternate READ mode may also be implement-
ed, whereby the master reads the M41T11 slave
without first writing to the (volatile) address point-
er. The first address that is read is the last one
stored in the pointer (see Figure 12., page 10).
Figure 10. Slave Address Location
Figure 11. READ Mode Sequence
AI00602
R/W
SLAVE ADDRESS
START
A
0
100
0
11
MSB
LSB
AI00899
BUS ACTIVITY:
ACK
S
ACK
NO
ACK
STOP
START
P
SDA LINE
BUS ACTIVITY:
MASTER
R/W
DATA n
DATA n+1
DATA n+X
WORD
ADDRESS (An)
SLAVE
ADDRESS
S
START
R/W
SLAVE
ADDRESS
ACK
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