 |
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 |
|
PC87373 数据表(PDF) 85 Page - National Semiconductor (TI) |
|
|
|
|||||||||||||||||||||||||||||
PC87373 数据表(HTML) 85 Page - National Semiconductor (TI) |
|
|
85 / 174 page  6.0 System Wake-Up Control (SWC) (Continued) 85 www.national.com Revision 1.1 Figure 15. SCI Generation The SCI interrupt (SIOPME) is routed to the system interrupt (IRQ) by setting the Interrupt Number value, in the Interrupt Number register, located at index 70h in the SWC Configuration (see Section 3.12.2 on page 59). 6.2.5 LED Control The PC87373 device controls the operation of two LED indicators. The two open-drain buffers allow the connection of either two regular LEDs or one dual-color LED. The LEDs can be connected to PC87373 using one of the configurations shown in Figure 16. Figure 16. LED Connection Configurations The LED pins are named GRN_LED (Green LED) and YLW_LED (Yellow LED), although other LED colors can be used. The PC87373 allows three LED control options, which are selected by LED_OPT field in SWC_CTL register (see Section 6.3.3 on page 90): q Standard LED control: On/Off and Blink controlled by software or by S5 sleep state q Advanced LED control: On/Off and Blink controlled by software, by S3 or S5 sleep states, or by the VDD3 power sup- ply status q Special LED control: On/Off and Blink controlled by software, by S3 or S5 sleep states or by the Main power supply status via the PWRGD_PS signal From the base address of the SWC registers, the register for Standard LED Control is located at offset 00h, the two registers for Advanced LED Control are located at offsets 02h and 03h, and the register for Special LED Control is located at offset 02h (see Section 6.3.1 on page 88). The active control registers are selected by LED_OPT field. The blink rate and duty cycle of all LED control options are based on a clock, which is obtained by dividing the frequency of the 32 KHz clock domain. Enable GPE1_STS_0-3 Status Set GPE1_EN_0-3 Detected Event (SIOPME) From Other Enabled Events SCI Interrupt PME_EN GPE1_STS PME_STS Set GPE1_EN IRQ Routing Control a. Active Low LED VSUP R Pin LED VSUP R Pin LED VSUP R Pin Pin VSUP R b. Active High c. Dual-Color GRN_LED YLW_LED GRN YLW |
|
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
