| 数据搜索系统,热门电子元器件搜索 |
|
CC2420-RTR1 数据表(PDF) 77 Page - Texas Instruments |
|
|
|||||||||||||||||||||||||||||
CC2420-RTR1 数据表(HTML) 77 Page - Texas Instruments |
|
77 / 92 page ![]() CC2420 SWRS041B Page 77 of 89 FSTST0 (0x27) - Frequency Synthesizer Test Register 0 Bit Field Name Reset R/W Description 15:12 - 0 W0 Reserved, write as 0 11 VCO_ARRAY_SETTLE_LONG 0 R/W When '1' this control bit doubles the time allowed for VCO settling during VCO calibration. 10 VCO_ARRAY_OE 0 R/W VCO array manual override enable. 9:5 VCO_ARRAY_O[4:0] 16 R/W VCO array override value. 4:0 VCO_ARRAY_RES[4:0] 16 R The VCO array result holds the register content of the most recent calibration. FSTST1 (0x28) - Frequency Synthesizer Test Register 1 Bit Field Name Reset R/W Description 15 VCO_TX_NOCAL 0 R/W 0 : VCO calibration is always performed when going to RX or when going to TX. 1 : VCO calibration is only performed when going to RX or when using the STXCAL command strobe 14 VCO_ARRAY_CAL_LONG 1 R/W When ‘1’ this control bit doubles the time allowed for VCO frequency measurements during VCO calibration. 0 : PLL Calibration time is 37 us 1 : PLL Calibration time is 57 us 13:10 VCO_CURRENT_REF[3:0] 4 R/W The value of the reference current calibrated against during VCO calibration. 9:4 VCO_CURRENT_K[5:0] 0 R/W VCO current calibration constant. (Current B override value when FSTST2.VCO_CURRENT_OE=1.) 3 VC_DAC_EN 0 R/W Controls the source of the VCO VC node in normal operation (TOPTST.VC_IN_TEST_EN=0): 0: Loop filter (closed loop PLL) 1: VC DAC (open loop PLL) 2:0 VC_DAC_VAL[2:0] 2 R/W VC DAC output value FSTST2 (0x29) - Frequency Synthesizer Test Register 2 Bit Field Name Reset R/W Description 15 - 0 W0 Reserved, write as 0. 14:13 VCO_CURCAL_SPEED[1:0] 0 R/W VCO current calibration speed: 0: Normal 1: Double speed 2: Half speed 3: Undefined. 12 VCO_CURRENT_OE 0 R/W VCO current manual override enable. 11:6 VCO_CURRENT_O[5:0] 24 R/W VCO current override value (current A). 5:0 VCO_CURRENT_RES[5:0] 32 R The VCO current result holds the register content of the most recent calibration. |
|
链接网址 |
| ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 数据表链接 | 链接交换 | 制造商名单 All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |