參數(shù)資料
型號(hào)： X9119TV14Z-2.7
廠商： Intersil
文件頁(yè)數(shù)： 13/17頁(yè)
文件大?。?/td> 0K
描述： IC XDCP SGL 1024TAP 100K 14TSSOP
標(biāo)準(zhǔn)包裝： 95
系列： XDCP™
接片： 1024
電阻（歐姆）： 100k
電路數(shù)： 1
溫度系數(shù)： 標(biāo)準(zhǔn)值 ±300 ppm/°C
存儲(chǔ)器類型： 非易失
接口： I²C（設(shè)備位址）
電源電壓： 2.7 V ~ 5.5 V
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 14-TSSOP（0.173"，4.40mm 寬）
供應(yīng)商設(shè)備封裝： 14-TSSOP
包裝： 管件
5
FN8162.4
July 9, 2008
STOP CONDITION
All communications must be terminated by a stop condition,
which is a LOW to HIGH transition of SDA while SCL is
HIGH (see Figure 3).
ACKNOWLEDGE
Acknowledge is a software convention used to provide a
positive handshake between the master and slave devices
on the bus to indicate the successful receipt of data. The
transmitting device, either the master or the slave, will
release the SDA bus after transmitting eight bits. The master
generates a ninth clock cycle and during this period the
receiver pulls the SDA line LOW to acknowledge that it
successfully received the eight bits of data.
The X9119 will respond with an acknowledge after
recognition of a start condition and its slave address and
once again after successful receipt of the command byte. If
the command is followed by a data byte the X9119 will
respond with a final acknowledge (see Figure 2).
ACKNOWLEDGE POLLING
The disabling of the inputs, during the internal nonvolatile
write operation, can be used to take advantage of the typical
5ms EEPROM write cycle time. Once the stop condition is
issued to indicate the end of the nonvolatile write command
the X9119 initiates the internal write cycle. ACK polling,
Flow 1, can be initiated immediately. This involves issuing
the start condition followed by the device slave address. If
the X9119 is still busy with the write operation, no ACK will
be returned. If the X9119 has completed the write operation,
an ACK will be returned and the master can then proceed
with the next operation.
FLOW 1. ACK Polling Sequence
SCL FROM
MASTER
DATA OUTPUT
FROM TRANSMITTER
1
89
ST AR T
ACKNOWLEDGE
DATA OUTPUT
FROM RECEIVER
FIGURE 2. ACKNOWLEDGE RESPONSE FROM RECEIVER
NONVOLATILE WRITE
COMMAND COMPLETED
ENTERACK POLLING
ISSUE
START
ISSUE SLAVE
ADDRESS
ACK
RETURNED?
FURTHER
OPERATION?
ISSUE
INSTRUCTION
ISSUE STOP
NO
YES
PROCEED
ISSUE STOP
NO
PROCEED
X9119
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