 |
数据搜索系统，热门电子元器件搜索 |
|
|
数据搜索系统，热门电子元器件搜索 |
|
WM8321 数据表(PDF) 100 Page - Wolfson Microelectronics plc |
|
|
|||||||||||||||||||||||||||||
WM8321 数据表(HTML) 100 Page - Wolfson Microelectronics plc |
|
|
100 / 253 page  WM8321 Production Data w PD, February 2012, Rev 4.0 100 18.4 DIGITAL COMPARATORS The WM8321 has four digital comparators which may be used to compare AUXADC measurement data against programmable threshold values. Each comparator has a status bit, and also an associated interrupt flag (described in Section 18.5), which indicates that the associated data is beyond the threshold value. The digital comparators are enabled using the DCMPn_ENA register bits as described in Table 45. After an AUXADC conversion, the measured value is compared with the threshold level of any associated comparator(s). Note that this comparison is only performed following a conversion. The source data for each comparator is selected using the DCMPn_SRC register bits; this selects one of the AUXADC channels for each comparator. If required, the same AUXADC channel may be selected for more than one comparator; this would allow more than one threshold to be monitored on the same AUXADC channel. Note that the Backup Battery voltage input can only be monitored using DCMP4. The DCMPn_GT register bits select whether the status bit and associated interrupt flag will be asserted when the measured value is above the threshold or when the measured value is below the threshold. The output of the most recent threshold comparison is indicated in the DCOMPn_STS fields. The threshold DCMPn_THR is a 12-bit code for each comparator. This field follows the same voltage or temperature coding as the associated AUXADC channel source (see Section 18.3). ADDRESS BIT LABEL DEFAULT DESCRIPTION R16432 (4030h) Comparator Control 11 DCOMP4_STS 0 Digital Comparator 4 status 0 = Comparator 4 threshold not detected 1 = Comparator 4 threshold detected (Trigger is controlled by DCMP4_GT) 10 DCOMP3_STS 0 Digital Comparator 3 status 0 = Comparator 3 threshold not detected 1 = Comparator 3 threshold detected (Trigger is controlled by DCMP3_GT) 9 DCOMP2_STS 0 Digital Comparator 2 status 0 = Comparator 2 threshold not detected 1 = Comparator 2 threshold detected (Trigger is controlled by DCMP2_GT) 8 DCOMP1_STS 0 Digital Comparator 1 status 0 = Comparator 1 threshold not detected 1 = Comparator 1 threshold detected (Trigger is controlled by DCMP1_GT) 3 DCMP4_ENA 0 Digital Comparator 4 Enable 0 = Disabled 1 = Enabled 2 DCMP3_ENA 0 Digital Comparator 3 Enable 0 = Disabled 1 = Enabled 1 DCMP2_ENA 0 Digital Comparator 2 Enable 0 = Disabled 1 = Enabled 0 DCMP1_ENA 0 Digital Comparator 1 Enable 0 = Disabled 1 = Enabled R16433 (4031h) 15:13 DCMP1_SRC [2:0] 000 Digital Comparator 1 source select |
|
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 |
Chinese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
