EM2420 ETC [List of Unclassifed Manufacturers], EM2420 Datasheet - Page 82
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EM2420
Manufacturer Part Number
EM2420
Description
2.4 GHz IEEE 802.15.4 / ZigBee RF Transceiver
Manufacturer
ETC [List of Unclassifed Manufacturers]
Datasheet
1.EM2420.pdf
(89 pages)
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T (0x2F)
15:8
7
6
5
4
3:0
RESERVED (0x30) - Reserved register containing spare control and status bits
15:0
TXFIFO (0x3E) – Transmit FIFO Byte register
7:0
RXFIFO (0x3F) – Receive FIFO Byte register
7:0
Ember Part Number: 120-0049-000C
Register
TOPTS
Level
- Top
Test
Bit
Bit
Bit
Bit
Bit
Field Name
Field Name
-
RAM_BIST_RUN
TEST_BATTMON_EN
VC_IN_TEST_EN
ATESTMOD_PD
ATESTMOD_MODE[3:0]
Field Name
RES[15:0]
Field Name
TXFIFO[7:0]
Field Name
RXFIFO[7:0]
Reset
Reset
0
0
0
0
1
Reset
0
Reset
-
Reset
-
EM2420 Datasheet
R/W
R/W
W0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
W
R/W
R/W
Description
Description
Reserved, write as 0.
Enable BIST of the RAM
0 : RAM BIST disabled, normal operation
1 : RAM BIST Enabled. Result output to pin, as set in IOCFG1.
Enable test output of the battery monitor.
When ATESTMOD_MODE=7 this controls whether the ATEST2
in is used to output the VC node voltage (0) or to control the VC
node voltage (1).
Powerdown of analog test module.
0 : Power up
1 : Power down
When ATESTMOD_PD =0, the function of the analog test module
is as follows:
0: Outputs “I” ( ATEST1 ) and “Q” ( ATEST2 ) from RxMIX.
1: Inputs “I” ( ATEST2 ) and “Q” ( ATEST1 ) to BPF.
2: Outputs “I” ( ATEST1 ) and “Q” ( ATEST2 ) from VGA.
3: Inputs “I” ( ATEST2 ) and “Q” ( ATEST1 ) to ADC.
4: Outputs “I” ( ATEST1 ) and “Q” ( ATEST2 ) from LPF.
5: Inputs “I” ( ATEST2 ) and “Q” ( ATEST1 ) to TxMIX.
6: Outputs “P” ( ATEST1 ) and “N” ( ATEST2 ) from Prescaler. Must
be terminated externally.
7: Connects TX IF to RX IF and simultaneously the ATEST1 pin
to the internal VC node (see VC_IN_TEST_EN ).
8. Connect ATEST1 (input) to ATEST2 (output) through
single2diff and diff2single buffers, used for measurements on the
test-interface
Description
Reserved for future use
Description
Transmit FIFO byte register, write only. Reading the TXFIFO is
only possible using RAM read. Note that the crystal oscillator
must be running for writing to the TXFIFO.
Description
Receive FIFO byte register, read / write. Note that the crystal
EM2420
Page 82 of 89
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