MRF39RA Datasheet, PDF (43/72 Pages) Microchip Technology – Low-Power, Integrated UHF Receiver

MRF39RA
5.2 Common Configuration Registers
TABLE 5-2: COMMON CONFIGURATION REGISTERS
Name
(Address)
Bits
Variable Name
Mode
Default
Value
Description
RegFifo
(0x00)
7-0 Fifo
rw 0x00 FIFO data output
RegOpMode
(0x01)
Controls the automatic sequencer, see Section 3.2
“Automatic Sequencer and Wake-up Times”:
7 SequencerOff
rw
0
0  Operating mode as selected with Mode bits in
RegOpMode is automatically reached with the
Sequencer
1  Mode is forced by the user
6 ListenOn
Enables Listen mode; it must be enabled while in
rw
0
Standby mode:
0  OFF (see Section 3.3 “Listen Mode”)
1  ON
5 ListenAbort
Aborts Listen mode when set together with
w
0
ListenOn = 0 (see Section 3.3.4 “Stopping Listen
Mode”)
Always reads ‘0’
4-2 Mode
Receiver’s operating modes:
000  Sleep mode (SLEEP)
001  Standby mode (STDBY)
rw
001
010
100
 Frequency Synthesizer mode (FS)
 Receiver mode (RX)
Others  Reserved
Reads the value corresponding to the current chip
mode
1-0 —
r
00 Unused
RegDataModule
(0x02)
7—
6-5 DataMode
r
0 Unused
Data Processing mode:
00  Packet mode
rw
00 01  Reserved
10  Continuous mode with bit synchronizer
11  Continuous mode without bit synchronizer
4-3 ModulationType rw
Modulation scheme:
00
00
01
 FSK
 OOK
10 - 11  Reserved
2-0 —
r
000 Unused
RegBitrateMsb
(0x03)
7-0 BitRate(15:8)
rw
0X1A
MSB of bit rate (chip rate when Manchester encoding
is enabled)
RegBitrateLsb
(0x04)
LSB of bit rate (chip rate if Manchester encoding is
enabled)
7-0 BitRate(7:0)
rw 0X0B
BitRate = _B-----_i--_t-^F-_R---^X-_a---_tO--_e---^S_(--1-^C--5---,-0---)-
Reserved05
(0x05)
Reserved06
(0x06)
7-0 —
7-0 —
Default value: 4.8 kbps
r
0X00 Unused
r
0X52 Unused
 2015 Microchip Technology Inc.
DS40001778B-page 43