Rainbow Electronics RF22 - Manual (Page 53)

RF22
Version: 0.1 Date: 12/23/2008
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12. Reference Material
12.1. Complete Register Table and Descriptions
Register 00h. Device Type Code (DT)
Bit D7 D6 D5 D4 D3 D2 D1 D0
Name Reserved dt[4:0]
Type R R
Reset value = 00001000
Bit Name Function
7:5 Reserved Reserved.
4:0 dt[4:0] Device Type Code.
Indicates if the device is a transmitter, receiver, or a transceiver.
RX: 01000
TRX: 00111
Register 01h. Version Code (VC)
Bit D7 D6 D5 D4 D3 D2 D1 D0
Name Reserved vc[4:0]
Type R R
Reset value = 00000001
Bit Name Function
7:5 Reserved Reserved.
4:0 vc[4:0] Version Code.
Code indicating the version of the chip.
Rev X4: 01
Rev V2: 02
Rev A0: 03
Register 02h. Device Status
Bit D7 D6 D5 D4 D3 D2 D1 D0
Name ffovfl ffunfl rxffem headerr freqerr lockdet cps[1:0]
Type R R R R R R R
Reset value = xxxxxxxx
Bit Name Function
7 ffovfl RX/TX FIFO Overflow Status.
6 ffunfl RX/TX FIFO Underflow Status.
5 rxffem RX FIFO Empty Status.
4
headerr
Header Error Status.
Indicates if the received packet has a header check error.
3
freqerr
Frequency Error Status.
Indicates if the programmed frequency is outside of the operating range.
The actual frequency is saturated to the max/min value.
2 lockdet Synthesizer Lock Detect Status.
1:0
cps[1:0]
Chip Power State.
00: Idle State
01: RX State
10: TX State