RFM64B Datasheet, PDF (33/75 Pages) List of Unclassifed Manufacturers – ISM TRANSCEIVER MODULE

ADVANCED COMMUNICATIONS & SENSING
RFM 64B
4. Operating Modes
This section summarizes the settings for each operating mode of the RFM64B, and explains the
functionality available and the timing requirements for switching between modes.
4.1. Modes of Operation
Table 12: Operating Modes
Mode
Sleep
Standby
FS
Receive
Transmit
MCParam_Module mode
000
001
010
011
100
Active blocks
SPI, POR
SPI, POR, Top regulator, digital regulator, XO, CLKOUT (if activated through
OSCParam_Clkout)
Same + VCO regulator, all PLL and LO generation blocks
Same as FS mode + LNA, first mixer, IF amplifier, second mixer set, channel
filters, baseband amplifiers and limiters, RSSI, OOK or FSK demodulator,
BitSync and all digital features if enabled
Same as FS mode + DDS, Interpolation filters, all up-conversion mixers, PA
driver, PA and external VR_PA pin output for PA choke.
4.2. Digital Pin Configuration vs. Module Mode
Table 13 describes the state of the digital IOs in each of the above described modes of operation.
Table 13: Pin Configuration vs. Module Mode
Module
……….Mode
Pin
Sleep
mode
Standby
mode
FS mode
NSS_CONFIG Input Input
Input
NSS_DATA
Input
Input
Input
MISO
Input Input
Input
MOSI
SCK
IRQ_0
IRQ_1
DATA
CLKOUT
Input
Input
High-Z
High-Z
Input
High-Z
Input
Input
Output (1)
Output (1)
Input
Output
Input
Input
Output (1)
Output (1)
Input
Output
Receive
mode
Input
Input
Input
Input
Input
Output
Output
Output
Output
Transmit
mode
Comment
Input
Input
Input
Input
Input
Output
Output
Input
Output
NSS_CONFIG has the priority over
NSS_DATA
Output only if NSS_CONFIG or
NSSDATA=‟0‟
Notes:
(1): High-Z if Continuous mode is activated, else Output
(2): Valid logic states must be applied to inputs at all times to avoid unwanted leakage currents
Page 33 of 75
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