收藏本站
24AA515/24LC515/24FC515
7.0
ACKNOWLEDGE POLLING
FIGURE 7-1:
ACKNOWLEDGE
Since the device will not acknowledge during a write
cycle, this can be used to determine when the cycle is
complete. (This feature can be used to maximize bus
throughput.) Once the Stop condition for a Write
command has been issued from the master, the device
initiates the internally timed write cycle. ACK polling
can be initiated immediately. This involves the master
sending a Start condition, followed by the control byte
for a Write command (R/W = 0 ). If the device is still
busy with the write cycle, then no ACK will be returned.
If no ACK is returned, then the Start bit and control byte
must be resent. If the cycle is complete, then the device
will return the ACK, and the master can then proceed
with the next Read or Write command. See Figure 7-1
for flow diagram.
POLLING FLOW
Send
Write Command
Send Stop
Condition to
Initiate Write Cycle
Send Start
Note:
Care must be taken when polling the
24LC515. The control byte that was used
to initiate the write needs to match the
control byte used for polling.
Send Control Byte
with R/W = 0
Did Device
Acknowledge
(ACK = 0 )?
Yes
Next
Operation
No
DS21673G-page 10
? 2008 Microchip Technology Inc.
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
24FC64T-I/MF IC EEPROM 64KBIT 1MHZ 8DFN
24LC014H-I/P IC EEPROM 1KBIT 400KHZ 8DIP
24LC014T-E/OT IC EEPROM 1KBIT 400KHZ SOT23-6
24LC01B-I/SNG IC EEPROM 1KBIT 400KHZ 8SOIC
24LC024H-I/ST IC EEPROM 2KBIT 400KHZ 8TSSOP
24LC025T-E/MC IC EEPROM 2KBIT 400KHZ 8DFN
24LC04B-E/P IC EEPROM 4KBIT 400KHZ 8DIP
24LC04BH-E/P IC EEPROM 4KBIT 400KHZ 8DIP
相关代理商/技术参数
24FC64 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:64K I2C? Serial EEPROM
24FC64-E/CS16K 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:64K I2C? Serial EEPROM
24FC64-E/MC 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:64K I2C? Serial EEPROM
24FC64-E/MNY 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:64K I2C? Serial EEPROM
24FC64-E/MS 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:64K I2C? Serial EEPROM
24FC64-E/OT 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:64K I2C? Serial EEPROM
24FC64-E/P 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:64K I2C? Serial EEPROM
24FC64-E/SM 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:64K I2C? Serial EEPROM