Rainbow Electronics AT86RF231 User Manual
Page 123
123
8111A–AVR–05/08
AT86RF231
Register 0x1A (PLL_CF):
This register controls the operation of the center frequency calibration loop.
• Bit 7 - PLL_CF_START
PLL_CF_START = 1 initiates the center frequency calibration. The calibration cycle has finished
after t
TR21
= 35 µs (typ.). The register bit is cleared immediately after finishing the calibration.
• Bit [6:0] - Reserved
Register 0x1B (PLL_DCU):
This register controls the operation of the delay cell calibration loop.
Table 9-17.
Channel Assignment for IEEE 802.15.4 - 2.4 GHz Band
Register Bit
Value
Channel Number k
Center Frequency [MHz]
CHANNEL
0x0B
11
2405
0x0C
12
2410
0x0D
13
2415
0x0E
14
2420
0x0F
15
2425
0x10
16
2430
0x11
17
2435
0x12
18
2440
0x13
19
2445
0x14
20
2450
0x15
21
2455
0x16
22
2460
0x17
23
2465
0x18
24
2470
0x19
25
2475
0x1A
26
2480
Bit
7
6
5
4
3
2
1
0
+0x1A
PLL_CF_START
Reserved
PLL_CF
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset Value
0
1
0
1
0
1
1
1
Bit
7
6
5
4
3
2
1
0
+0x1B
PLL_DCU_START
Reserved
PLL_DCU
Read/Write
R/W
R
R/W
R/W
R/W
R/W
R/W
R/W
Reset Value
0
0
1
0
0
0
0
0