SX1210 SEMTECH [Semtech Corporation], SX1210 Datasheet - Page 37

• Manufacturer Part Number: SX1210
• Description: Ultra-Low Power Integrated UHF Receiver
• Manufacturer: SEMTECH [Semtech Corporation]

Note that some connections may not be needed depending on the application:
In addition, NSS_DATA pin (unused in continuous mode) should be pulled-up to VDD through a 100 kΩ resistor.
Please refer to Table 11 for SX1210’s pins configuration
Table 16: Relevant Configuration Registers in Continuous Mode (data processing related only)
Rev 2– Sept 8
ADVANCED COMMUNICATIONS & SENSING
SYNCParam
IRQParam
MCParam
RXParam
IRQ_0: if Sync and RSSI interrupts are not used. In this case, leave floating.
IRQ_1: DCLK connection is not compulsory. In this case, leave floating.
MISO: if no read register access is needed. In this case, pull-up to VDD through a 100 kΩ resistor.
Configure all data processing related registers listed below appropriately. In this example we assume that both
Bit synchronizer and Sync word recognition are on.
Program Rx interrupts: IRQ_0 mapped to Sync (Rx_stby_irq_0=”00”) and IRQ_1 mapped to DCLK (Bit
synchronizer enabled)
Go to Rx mode (note that Rx is not ready immediately, see Figure 40)
Wait for Sync interrupt
Get all packet bits on DATA pin synchronously with DCLK signal provided on IRQ_1
Go to Sleep mode
5.3.4. uC Connections
5.3.5. Continuous Mode Example
th
, 2008
Rx_stby_irq_0
Data_mode_x
Sync_value
Sync_size
Sync_on
Sync_tol
Figure 29: uC Connections in Continuous Mode
SX1210
Description
Defines data operation mode (
Defines IRQ_0 source in Rx mode
Enables Sync word recognition
Defines Sync word size
Defines the error tolerance on Sync word recognition
Defines Sync word value
IRQ_1 (DCLK)
NSS_CONFIG
IRQ_0
DATA
MOSI
MISO
SCK
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uC
Continuous)
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