參數資料
型號: 24AA256T-ESN
廠商: Microchip Technology Inc.
英文描述: I2C⑩ Serial EEPROM Family Data Sheet
中文描述: ⑩的I2C串行EEPROM系列數據手冊
文件頁數: 20/42頁
文件大?。?/td> 540K
代理商: 24AA256T-ESN
24AAXX/24LCXX/24FCXX
DS21930B-page 20
2007 Microchip Technology Inc.
8.3
Sequential Read
Sequential reads are initiated in the same way as a
random read except that after the 24XX transmits the
first data byte, the master issues an acknowledge as
opposed to the Stop condition used in a random read.
This acknowledge directs the 24XX to transmit the next
sequentially addressed data byte (Figure 8-4). Follow-
ing the final byte transmitted to the master, the master
will NOT generate an acknowledge but will generate a
Stop condition. To provide sequential reads, the 24XX
contains an internal Address Pointer which is incre-
mented by one at the completion of each operation.
This Address Pointer allows the entire memory con-
tents to be serially read during one operation. If the last
address byte in the array is acknowledged, the Address
Pointer will roll over to address 0x00.
FIGURE 8-4:
SEQUENTIAL READ
Bus Activity
Master
SDA Line
Bus Activity
Control
Byte
Data Byte
Data Byte
Data Byte
Data Byte
N
O
A
C
K
A
C
K
A
C
K
A
C
K
A
C
K
S
T
O
P
P
Initial
Second
Third
Final
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