M24SR02-YMF7T/2 Просмотр технического описания (PDF) - STMicroelectronics

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M24SR02-YMF7T/2

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

STMicroelectronics 

Signal descriptions

M24SR02-Y

2.7.7

RF busy configuration (GPO field = 0x6X)

When the GPO is configured as RF busy, the GPO goes to the low state when the

M24SR02-Y is processing an RF command or when an RFsession is ongoing.

When an RF field is present, GPO is driven low after a delay (1) when M24SR02-Y detects

the first command. If the RF session is ongoing and M24SR02-Y receives a not-supported

command, GPO remains low. It will be released only at the end of the RF session, after (2).

Figure 9. GPO configured as RF busy (GPO field = 0x6X)

Z&ĐŚĂŶŶĞů

'WKĂƐZ&ďƵƐLJ

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;ϮͿ

Z&ĐŽŵŵĂŶĚ

ŶŽƚƐƵƉƉŽƌƚĞĚ

;ϭͿ

^ĞŶƐZĞƋΘ

^ĞŶƐZĞƐ

Z&

ĐŽŵŵĂŶĚ

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1. CmdSOFtoGPlow (RF command Start of frame to GPO low)

2. CmdEOFtoGPHZ (RF command End of frame to GPO HZ)

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20/90

DocID025386 Rev 10

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