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參數(shù)資料
| 型號： | EM2420TR |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 2.4 GHz IEEE 802.15.4 / ZigBee RF Transceiver |
| 中文描述： | 2.4 GHz IEEE 802.15.4標(biāo)準(zhǔn)/ ZigBee的射頻收發(fā)器 |
| 文件頁數(shù)： | 74/89頁 |
| 文件大?。?/td> | 1758K |
| 代理商： | EM2420TR |
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EM2420
Ember Part Number: 120-0049-000
C
EM2420 Datasheet
Page 74 of 89
IOCFG0 (0x1C) – I/O Configuration Register 0
Bit
Field Name
Reset
R/W
Description
15:12
-
0
W0
Reserved, write as 0
11
-
0
R/W
Reserved, write as 0
10
FIFO_POLARITY
0
R/W
Polarity of the output signal FIFO.
0 : Polarity is as described in the specification
1 : Polarity is inverted as compared to the specification
9
FIFOP_POLARITY
0
R/W
Polarity of the output signal FIFOP.
0 : Polarity is as described in the specification
1 : Polarity is inverted as compared to the specification
8
SFD_POLARITY
0
R/W
Polarity of the SFD pin.
0 : Polarity is as described in the specification
1 : Polarity is inverted as compared to the specification
7
CCA_POLARITY
0
R/W
Polarity of the CCA pin.
6:0
FIFOP_THR[6:0]
64
R/W
FIFOP_THR sets the threshold in number of bytes in the
RXFIFO for FIFOP to go high.
IOCFG1 (0x1D) – I/O Configuration Register 1
Bit
Field Name
Reset
R/W
Description
15:13
-
0
W0
Reserved, write as 0
12:10
HSSD_SRC[2:0]
0
R/W
The HSSD module is used as follows:
0: Off.
1: Output AGC status (gain setting / peak detector status /
accumulator value)
2: Output ADC I and Q values.
3: Output I/Q after digital downmix and channel filtering.
4: Reserved
5: Reserved
6: Input ADC I and Q values
7: Input DAC I and Q values.
The HSSD module requires that the FS is up and running as it
uses CLK_PRE (~150 MHZ) to produce its ~37.5 MHz data clock
and serialize its output words.
9:5
SFDMUX[4:0]
0
R/W
Multiplexer setting for the SFD pin.
4:0
CCAMUX[4:0]
0
R/W
Multiplexer setting for the CCA pin.
MANFIDL (0x1E) - Manufacturer ID, Lower 16 Bi
Bit
Field Name
Reset
R/W
Description
15:12
PARTNUM[3:0]
2
R
The device part number. The
EM2420
has part number 0x002.
11:0
MANFID[11:0]
0x33D
R
Gives the JEDEC manufacturer ID. The actual manufacturer ID
can be found in MANFID[7:1], the number of continuation bytes
in MANFID[11:8] and MANFID[0]=1.
The JEDEC manufacturer ID is 0x7F 0x7F 0x7F 0x9E (0x1E
preceded by three continuation bytes.)
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