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參數(shù)資料
| 型號： | 71M6531F-IM/F |
| 廠商： | TERIDIAN SEMICONDUCTOR CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC68 |
| 封裝： | LEAD FREE, QFN-68 |
| 文件頁數(shù)： | 79/120頁 |
| 文件大?。?/td> | 2477K |
| 代理商： | 71M6531F-IM/F |
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FDS 6531/6532 005
Data Sheet 71M6531D/F-71M6532D/F
v1.3
2005-2010 TERIDIAN Semiconductor Corporation
61
2.5
Wake-Up Behavior
As described above, the part will always wake up in MISSION mode when system power is restored.
Additionally, the part will wake up in BROWNOUT mode when PB rises (push button is pressed) or when
a timeout of the wake-up timer occurs.
2.5.1
Wake on PB
If the part is in SLEEP or LCD mode, it can be awakened by a rising edge on the PB pin. This pin is normally
pulled to GND and can be pulled high by a push button depression. Before the PB signal rises, the MPU
is in reset due to WAKE being low. When PB rises, WAKE rises and within three crystal cycles, the MPU
begins to execute. The MPU can determine whether the PB signal woke it up by checking the IE_PB flag.
Figure 25 shows the Wake Up timing.
For debouncing, the PB pin is monitored by a state machine operating from a 32 Hz clock. This circuit
will reject between 31 ms and 62 ms of noise. Detection hardware will ignore all transitions after the initial
rising edge. This will continue until the MPU clears the IE_PB bit.
Figure 25: Wake Up Timing
2.5.2
Wake on Timer
If the part is in SLEEP or LCD mode, it can be awakened by the wake-up timer. Until this timer times out,
the MPU is in reset due to WAKE being low. When the wake-up timer times out, the WAKE signal rises
and within three crystal cycles, the MPU begins to execute. The MPU can determine whether the timer
woke it by checking the AUTOWAKE interrupt flag (IE_WAKE).
The wake-up timer begins timing when the part enters LCD or SLEEP mode. Its duration is controlled by
WAKE_PRD[2:0] and WAKE_RES. WAKE_RES selects a timer LSB of either 1 minute (WAKE_RES = 1) or
2.5 seconds (WAKE_RES = 0). WAKE_PRD[2:0] selects a duration of from 1 to 7 LSBs.
The timer is armed by WAKE_ARM = 1. It must be armed at least three RTC cycles before SLEEP or
LCD_ONLY is initiated. Setting WAKE_ARM presets the timer with the values in WAKE_RES and WAKE_PRD
and readies the timer to start when the processor writes to SLEEP or LCD_ONLY. The timer is reset and
disarmed whenever the processor is awake. Thus, if it is desired to wake the MPU periodically (every 5
seconds, for example) the timer must be rearmed every time the MPU is awakened.
2.6
Data Flow
The data flow between the Compute Engine (CE) and the MPU is shown in
Figure 26. In a typical
application, the 32-bit CE sequentially processes the samples from the voltage inputs on pins IA, VA, IB
and VB, performing calculations to measure active power (Wh), reactive power (VARh), A
2h and V2h for
four-quadrant metering. These measurements are then accessed by the MPU, processed further and
output using the peripheral devices available to the MPU.
Figure 26 illustrates the CE/MPU data flow.
time
System
Power
(V3P3SYS)
MPU Mode
PLL_OK
15 CK32
cycles
WAKE
LCD
PB or wake-
up timer
BROWNOUT
相關PDF資料 |
PDF描述 |
|---|---|
| 71M6532D-IGTR/F | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQFP100 |
| 71M6531F-IM/F | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC68 |
| 71M6532F-IGT/F | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQFP100 |
| 71M6531F-IMR/F | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC68 |
| 71M6532D-IGT/F | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQFP100 |
相關代理商/技術參數(shù) |
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| 71M6531F-IMR/F | 功能描述:計量片上系統(tǒng) - SoC Residential Energy Meter IC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 處理器系列:71M6511 類型:Metering SoC 最大時鐘頻率:70 Hz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:7 KB 接口類型:UART 可編程輸入/輸出端數(shù)量:12 片上 ADC: 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-64 封裝:Reel |
| 71M6531F-IMR/F3 | 功能描述:計量片上系統(tǒng) - SoC Residential Energy Meter IC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 處理器系列:71M6511 類型:Metering SoC 最大時鐘頻率:70 Hz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:7 KB 接口類型:UART 可編程輸入/輸出端數(shù)量:12 片上 ADC: 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-64 封裝:Reel |
| 71M6531F-IMR/F8 | 功能描述:計量片上系統(tǒng) - SoC Residential Energy Meter IC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 處理器系列:71M6511 類型:Metering SoC 最大時鐘頻率:70 Hz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:7 KB 接口類型:UART 可編程輸入/輸出端數(shù)量:12 片上 ADC: 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-64 封裝:Reel |
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