 |
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 |
|
ST7MC1K2-Auto 数据表(PDF) 68 Page - STMicroelectronics |
|
|
|||||||||||||||||||||||||||||
ST7MC1K2-Auto 数据表(HTML) 68 Page - STMicroelectronics |
|
|
68 / 371 page  Obsolete Product(s) - Obsolete Product(s) Interrupts ST7MC1K2-Auto, ST7MC1K6-Auto, ST7MC2S4-Auto, ST7MC2S6-Auto 68/371 7.7.2 External interrupt control register (EICR) EICR Reset value: 0000 0000 (00h) 7 654 32 10 IS1[1:0] IPB IS2[1:0] IS3[1:0] IPA R/W R/W R/W R/W R/W Table 20. EICR register description Bit Name Function 7:6 IS1[1:0] Interrupt sensitivity (ei2 sensitivity) The interrupt sensitivity, defined using the IS1[1:0] bits, is applied to the following external interrupts: External interrupt ei2 (port C[3:2]): 00: External interrupt sensitivity = falling edge and low level (IPB bit = 0) and rising edge and high level (IPB bit = 1) 01: External interrupt sensitivity = rising edge only (IPB bit = 0) and falling edge only (IPB bit = 1) 10: External interrupt sensitivity = falling edge only (IPB bit = 0) and rising edge only (IPB bit = 1) 11: External interrupt sensitivity = rising and falling edge (IPB bit = 0 and IPB bit = 1) External interrupt ei2 (port B[7:6]): 00: External interrupt sensitivity = falling edge and low level 01: External interrupt sensitivity = rising edge only 10: External interrupt sensitivity = falling edge only 11: External interrupt sensitivity = rising and falling edge These 2 bits can be written only when I1 and I0 of the CC register are both set to 1 (level 3). 5IPB Interrupt polarity (for port C) This bit is used to invert the sensitivity of port C[3:2] external interrupts. It can be set and cleared by software only when I1 and I0 of the CC register are both set to 1 (level 3). 0: No sensitivity inversion 1: Sensitivity inversion 4:3 IS2[1:0] Interrupt sensitivity (ei1 sensitivity) The interrupt sensitivity, defined using the IS2[1:0] bits, is applied to the following external interrupts: External interrupt ei1 (port A3 and A5): 00: External interrupt sensitivity = falling edge and low level 01: External interrupt sensitivity = rising edge only 10: External interrupt sensitivity = falling edge only 11: External interrupt sensitivity = rising and falling edge Obsolete Product(s) - Obsolete Product(s) |
|
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
