SM1211E915TOPIC Semtech, SM1211E915TOPIC Datasheet - Page 55

• Manufacturer Part Number: SM1211E915TOPIC
• Description: KIT PICTAIL EXT FOR SX1211
• Manufacturer: Semtech
• Type: Transceiver, UHFr

Specifications of SM1211E915TOPIC

• Frequency: 915MHz
• For Use With/related Products: SX1211
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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