Rainbow Electronics AT86RF230 - Manual (Page 38)

38
AT86RF230
5131A-ZIGB-06/14/06
Bit Field Name Reset R/W Comments
7:4 XTAL_MODE 15 R/W XTAL Modes:
4’d0:
switch off
4’d4: external oscillator
4’d15: internal oscillator
All other modes are reserved and should not be used.
3:0 XTAL_TRIM 0 R/W Binary coded capacitance array for XTAL trimming.
Values: 0 pF, 0.3 pF, …, 4.8 pF
Table 8-14. 0x12 - XOSC_CTRL
Bit Field Name Reset R/W Comments
7 FTN_START 0 R/W 1’d1: Initiates filter calibration cycle
If filter calibration is finished, read value is “0”
6 1 R/W Reserved
5:0 FTNV 24 R/W Filter tuning value
Table 8-15. 0x18 - FTN_CTRL
Bit Field Name Reset R/W Comments
7 PLL_CF_START 0 R/W 1’d1: Initiates PLL center frequency calibration cycle
If frequency calibration is finished, read value is “0”
6:4 5 R/W Reserved
3:0 PLL_CF 15 R/W VCO center frequency control word
Table 8-16. 0x1A – PLL_CF
Bit Field Name Reset R/W Comments
7 PLL_DCU_START 0 R/W 1’d1: Initiates PLL delay cell calibration cycle
If delay cell calibration is finished, read value is “0”
6 0 R Reserved
5:0 PLL_DCUW 32 R/W Delay cell control word
Table 8-17. 0x1B – PLL_DCU
Bit Field Name Reset R/W Comments
7:0 PART_NUM 2 R The device part number.
8’d2:
AT86RF230
All other values are reserved
Table 8-18. 0x1C - PART_NUM
Bit Field Name Reset R/W Comments
7:0 VERSION_NUM 1 R The device version number.
Table 8-19. 0x1D - VERSION_NUM