M24SR Просмотр технического описания (PDF) - STMicroelectronics

Номер в каталоге

Компоненты Описание

производитель

M24SR

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

STMicroelectronics 

M24SR02-Y

Signal descriptions

2.7.6

State Control configuration (GPO field = 0xX5 or 0x5X)

When the GPO is configured as State Control, the I2C or RF host can control the state of the

GPO by sending a dedicated command.

During an RF or I2C session, the M24SR02-Y can control the GPO pin. After receiving a

valid Set GPO command, GPO pin is driven low after a delay (1) or (3). GPO will be

released after a valid Reset command or after a Power off or upon closing the RF session.

Figure 8. GPO configured as State Control (GPO field = 0xX5 or 0x5X)

5)RU,ð&

FKDQQHO

*32DV

6WDWH&RQWURO



RU



5HVHW*32

FRPPDQG

$Q\RWKHU

FRPPDQG



RU



6HW*32

FRPPDQG

1. CmdSTPtoGPlow (I2C Set GPO command Stop to GPO low)

2. CmdSTPtoGPHZ (I2C Reset GPO command Stop to GPO HZ)

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

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

069

DocID025386 Rev 10

19/90

20

Share Link: