M24SR Просмотр технического описания (PDF) - STMicroelectronics

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M24SR

Dynamic NFC/RFID tag IC with 2-Kbit EEPROM, NFC Forum Type 4 Tag and I²C interface

STMicroelectronics 

M24SR02-Y

Signal descriptions

2.7.2

WIP Writing in Progress configuration (GPO field = 0xX2 or 0x2X)

When the GPO is configured as "WIP", it goes to the Low state during an I2C or RF writing

operation.

During an RF or I2C session, when M24SR02-Y updates a file, GPO is driven low after a

delay (1) or (3) following the beginning of the correspondent UpdateBinary command

execution.

GPO will remain low during the writing time (2) or (4), before being released.

Figure 4. GPO configured as WIP (GPO field = 0xX2 or 0x2X)

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1. CmdSTPtoGPlow (I2C Command Stop to GPO low)

2. Writing time duration

3. CmdEOFtoGPlow (RF Command End of frame to GPO low)

4. Writing time duration

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DocID025386 Rev 10

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