参数资料
型号: SM1212E433
厂商: Semtech
文件页数: 60/77页
文件大小: 0K
描述: RF EVAL FOR SX1212 433MHZ ISM
标准包装: 1
类型: 收发器,ISM
频率: 433MHz
适用于相关产品: SX1212E
已供物品: 模块,天线,电源,软件
SX1212
ADVANCED COMMUNICATIONS & SENSING
6.3. Interrupt Configuration Parameters - IRQParam
The detailed description of the IRQParam register is given in Table 28.
Table 28: IRQParam Register Description
Name
Bits
Address
(d)
RW
Description
Configures the size of the FIFO:
Fifo_size
7-6
12
r/w
00 -> 16 bytes (d)
01 -> 32 bytes
10 -> 48 bytes
11 -> 64 bytes
Number of bytes to be written in the FIFO to activate the
Fifo_thresh
5-0
12
r/w
Fifo_threshold interrupts
Actual number of bytes = B + 1, where B is the value in the register.
(d): B = 001111 => Number of bytes = 16
IRQ_0 source in Rx and Standby modes:
If Data_mode(1:0) = 00 (Continuous mode):
00
01
10
11
Sync (d)
RSSI
Sync
Sync
If Data_mode(1:0) = 01 (Buffered mode):
00
- (d)
Rx_stby_irq_0
7-6
13
r/w
01
Write_byte
10
11
/Fifoempty*
Sync
If Data_mode(1:0) = 1x (Packet mode):
00
01
10
11
Payload_ready (d)
Write_byte
/Fifoempty*
Sync or Adrs_match (the latter if address filtering is enabled)
*also available in Standby mode (Cf sections 5.4.4 and 5.5.7)
IRQ_1 source in Rx and Standby modes:
If Data_mode(1:0) = 00 (Continuous mode):
xx
DCLK
If Data_mode(1:0) = 01 (Buffered mode):
00
01
- (d)
Fifofull*
Rx_stby_irq_1
5-4
13
r/w
10
11
RSSI
Fifo_threshold*
If Data_mode(1:0) = 1x (Packet mode):
00
01
10
11
CRC_ok (d)
Fifofull*
RSSI
Fifo_threshold*
*also available in Standby mode (Cf sections 5.4.4 and 5.5.7)
Tx start condition and IRQ_0 source:
0
Start transmission when the number of bytes in FIFO is greater than or
Tx_start_irq_0
3
13
r/w
equal to the threshold set by MCParam_Fifo_thresh parameter (Cf section
5.2.2.3), IRQ_0 mapped to Fifo_threshold (d)
1
Tx starts if FIFO is not empty, IRQ_0 mapped to /Fifoempty
Rev 2 – June 18th, 2009
Page 60 of 77
www.semtech.com
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