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| 型號(hào)： | DRM042 |
| 英文描述： | Universal Serial Bus Wireless Optical Mouse and Multimedia Keyboard reference design designer reference manual |
| 中文描述： | 通用串行總線無線光學(xué)鼠標(biāo)和多媒體鍵盤參考設(shè)計(jì)，設(shè)計(jì)參考手冊 |
| 文件頁數(shù)： | 51/80頁 |
| 文件大小： | 1025K |
| 代理商： | DRM042 |
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Software
Software Routines
DRM040 — Rev 0
Designer Reference Manual
MOTOROLA
Software
51
3.1.14 Real Time Clock ISR
The real time clock (RTC) module provides real time clock and calendar
functions with automatic leap year adjustment. The module provides
flags (and interrupts when enabled) for seconds, minutes, hours, days,
days-of-the-week, months and years. In addition it also provides
chronological, periodic and alarm interrupts.
The RTC_ISR is entered after each second and/or minute elapses. If a
second interrupt is detected the function copies the RTC registers to the
CopyRTC RAM buffer before checking if the 5 sec display count has
timed out. If a timeout has occurred the display sequence count
(SymbolFlags) is incremented to display the next data in the predefined
sequence (T1, T2, T3, etc).
If the minute interrupt is also detected one of two possible algorithms are
executed depending on the conditional compilation. If the
TARRIF_TEST_UPDATE macro is included the tariff to be accumulated
is changed every 3mins. The sequence is as follows T1, T2, T3, T4, T1,
repeated. If the macro is not included the routine activates the tariffs
depending on the time of day and day of week. The sequence is shown
below:
T1: Monday – Friday, 08:00Hrs – 17:00Hrs
T2: Monday – Friday, 17:00Hrs – 23:00Hrs
T3: Monday – Friday, 23:00Hrs – 08:00Hrs
T4: Saturday or Sunday
The second and minute interrupt flags are cleared before exiting the ISR.
Figure 3-14
shows the RTC_ISR flow diagram
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
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| DRM10 | 功能描述:DIP 開關(guān)/ SIP 開關(guān) BCD 10 POS RoHS:否 制造商:Omron Electronics 位置數(shù)量:10 開關(guān)類型:DIP 執(zhí)行器:Rotary 端子節(jié)距:2.54 mm 觸點(diǎn)形式: 端接類型:Solder Pin 電流額定值:100 mA 電壓額定值 DC: 工作溫度范圍: 安裝:Through Hole |
| DRM1004 | 功能描述:DIP 開關(guān)/ SIP 開關(guān) ROTARY DIP SWITCH PLASTICSHAFT RoHS:否 制造商:Omron Electronics 位置數(shù)量:10 開關(guān)類型:DIP 執(zhí)行器:Rotary 端子節(jié)距:2.54 mm 觸點(diǎn)形式: 端接類型:Solder Pin 電流額定值:100 mA 電壓額定值 DC: 工作溫度范圍: 安裝:Through Hole |
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| DRM10C | 功能描述:SWITCH DIP MINI SHAFT 10POS T/H RoHS:否 類別:開關(guān) >> DIP 系列:DR 特色產(chǎn)品:RDM Series Rotary DIP Switch 標(biāo)準(zhǔn)包裝:70 系列:RDM 電路:十六進(jìn)制 位置數(shù):16 觸點(diǎn)額定電壓:0.1A @ 42VDC 觸動(dòng)器類型:用于工具旋轉(zhuǎn) 觸動(dòng)器電平:凹槽式 安裝類型:通孔 方向:頂部觸動(dòng) 可清洗:是 其它名稱:EG4977-5RDMAR16PIT |
| DRM10C04 | 功能描述:編碼式波段開關(guān) SW DIP MINI SHAFT 10POS T/H RoHS:否 制造商:C&K Components 位置數(shù)量:10 輸出代碼:Binary Coded Decimal 執(zhí)行器:Screwdriver 觸點(diǎn)額定值: 端接類型:Solder Pin 封裝:Tube |
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