EM2420 Datasheet, PDF (74/89 Pages) List of Unclassifed Manufacturers – 2.4 GHz IEEE 802.15.4 / ZigBee RF Transceiver

EM2420
IOCFG0 (0x1C) – I/O Configuration Register 0
Bit
15:12
11
10
Field Name
-
-
FIFO_POLARITY
9
FIFOP_POLARITY
8
SFD_POLARITY
7
CCA_POLARITY
6:0
FIFOP_THR[6:0]
Reset
0
0
0
0
0
0
64
R/W
W0
R/W
R/W
R/W
R/W
R/W
R/W
Description
Reserved, write as 0
Reserved, write as 0
Polarity of the output signal FIFO.
0 : Polarity is as described in the specification
1 : Polarity is inverted as compared to the specification
Polarity of the output signal FIFOP.
0 : Polarity is as described in the specification
1 : Polarity is inverted as compared to the specification
Polarity of the SFD pin.
0 : Polarity is as described in the specification
1 : Polarity is inverted as compared to the specification
Polarity of the CCA pin.
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
15:13
12:10
Field Name
-
HSSD_SRC[2:0]
9:5
SFDMUX[4:0]
4:0
CCAMUX[4:0]
Reset
0
0
0
0
R/W
W0
R/W
R/W
R/W
Description
Reserved, write as 0
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.
Multiplexer setting for the SFD pin.
Multiplexer setting for the CCA pin.
MANFIDL (0x1E) - Manufacturer ID, Lower 16 Bi
Bit
15:12
11:0
Field Name
PARTNUM[3:0]
MANFID[11:0]
Reset R/W
2
R
0x33D R
Description
The device part number. The EM2420 has part number 0x002.
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.)
Ember Part Number: 120-0049-000C
EM2420 Datasheet
Page 74 of 89