SM1211E915 Semtech, SM1211E915 Datasheet - Page 55

• Manufacturer Part Number: SM1211E915
• Description: Dev Kit Accessory
• Manufacturer: Semtech

Specifications of SM1211E915

• Modulation Type: FSK, OOK
• Data Rate Max: 200Kbps
• Frequency Range: 902MHz To 928MHz
• Supply Voltage Range: 2.1V To 3.6V
• Module Interface: SPI
• Supply Current: 25mA
• Accessory Type: RF Module
• Sensitivity: -105dBm
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Package Type: TQFN EP
• Operating Supply Voltage (min): 2.1V
• Operating Supply Voltage (typ): 2.5/3.3V
• Operating Supply Voltage (max): 3.6V
• Sensitivity (dbm): -105dBm
• Rohs Compliant: NA
• Lead Free Status / RoHS Status: na
• Lead Free Status / RoHS Status: na

Table 23: Interrupt Mapping in Rx and Stby in Packet Mode
*The latter if Address filtering is enabled
Table 24: Interrupt Mapping in Tx Packet Mode
Note that depending upon the application, some uC connections may not be needed:
In addition, DATA pin (unused in packet mode) should be pulled-up to VDD through a 100 k resistor.
Please refer to Table 13 for the SX1211’s pin configuration.
Rev 7 – Sept 2
ADVANCED COMMUNICATIONS & SENSING
IRQ_0: if none of the relevant IRQ sources are used. In this case, leave floating.
IRQ_1: if none of the relevant IRQ sources are used. In this case, leave floating.
MISO: if no read register access is needed and the chip is used in Tx mode only. In this case, pull up to VDD
through a 100 k resistor.
5.5.8. uC Connections
nd
, 2008
IRQ_0
IRQ_1
Rx_stby_irq_x
IRQ_0
IRQ_1
00 (d)
00 (d)
01
10
11
01
10
11
Figure 48: uC Connections in Packet Mode
SX1211
Tx_start_irq_0=0 (d)
Tx_start_irq_0=1
Tx_irq_1=0 (d)
Tx_irq_1=1
NSS_CONFIG
NSS_DATA
Payload_ready
Write_byte
/Fifoempty
Sync or Adrs_match*
CRC_OK
Fifofull
RSSI
Fifo_threshold
IRQ_0
IRQ_1
MOSI
MISO
SCK
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Rx
Fifo_threshold
/Fifoempty
Fifofull
Tx_done
uC
-
-
/Fifoempty
-
-
Fifofull
-
Fifo_threshold
Tx
Stby
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SX1211