- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄68811 > 71M6543F-IGT/F (MAXIM INTEGRATED PRODUCTS INC) SPECIALTY ANALOG CIRCUIT, PQFP100 PDF資料下載
參數(shù)資料
| 型號(hào)： | 71M6543F-IGT/F |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 模擬信號(hào)調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQFP100 |
| 封裝： | LEAD FREE, LQFP-100 |
| 文件頁(yè)數(shù)： | 108/157頁(yè) |
| 文件大?。?/td> | 2178K |
| 代理商： | 71M6543F-IGT/F |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)當(dāng)前第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)第123頁(yè)第124頁(yè)第125頁(yè)第126頁(yè)第127頁(yè)第128頁(yè)第129頁(yè)第130頁(yè)第131頁(yè)第132頁(yè)第133頁(yè)第134頁(yè)第135頁(yè)第136頁(yè)第137頁(yè)第138頁(yè)第139頁(yè)第140頁(yè)第141頁(yè)第142頁(yè)第143頁(yè)第144頁(yè)第145頁(yè)第146頁(yè)第147頁(yè)第148頁(yè)第149頁(yè)第150頁(yè)第151頁(yè)第152頁(yè)第153頁(yè)第154頁(yè)第155頁(yè)第156頁(yè)第157頁(yè)
71M6543F/H and 71M6543G/GH Data Sheet
54
2008–2011 Teridian Semiconductor Corporation
v1.2
limiter ensures that the resulting look-up address is in the 6-bit plus sign range of -64 to +63 (decimal).
The 8-bit NV RAM content pointed to by the address is added as a 2’s complement value to 0x40000,
the nominal value of 4*RTC_P[16:0] + RTC_Q[1:0].
Refer to 2.5.4.3 RTC Rate Control for information on the rate adjustments performed by registers
RTC_P[16:0] and RTC_Q[1:0]. The 8-bit values loaded in to NV RAM must be scaled correctly to produce
rate adjustments that are consistent with the equations given in 2.5.4.3 RTC Rate Control for RTC_P[16:0]
and RTC_Q[1:0]. Note that the sum of the looked-up 8-bit 2’s complement value and 0x40000 form a 19-
bit value, which is equal to 4*RTC_P[16:0] + RTC_Q[1:0], as shown in Figure 13. The output of the
Temperature Compensation is automatically loaded into the RTC_P[16:0] and RTC_Q[1:0] locations after
each look-up and summation operation.
Σ
0x40000
19
10+S
STEMP
>>2
63
-64
63
255
-256
LIMIT
Look Up
RAM
ADDR
6+S
8+S
Q
7+S
4*RTC_P+RTC_Q
19
Figure 13: Automatic Temperature Compensation
The 128 NV RAM locations are organized in 2’s complement format. As mentioned above, the
STEMP[10:0] digital temperature values are scaled such that the corresponding NV RAM addresses are
equal to STEMP[10:0]/4 (limited in the range of -64 to +63). See 2.5.5 71M6543 Temperature Sensor on
page 55 for the equations to calculate temperature in degrees °C from the STEMP[10:0] reading.
For proper operation, the MPU has to load the lookup table with values that reflect the crystal properties
with respect to temperature, which is typically done once during initialization. Since the lookup table is
not directly addressable, the MPU uses the following procedure to load the NV RAM table:
1.
Set the LKPAUTOI bit (I/O RAM 0x2887[7]) to enable address auto-increment.
2.
Write zero into the I/O RAM register LKPADDR[6:0] (I/O RAM 0x2887[6:0]).
3.
Write the 8-bit datum into I/O RAM register LKPDAT (I/O RAM 0x2888).
4.
Set the LKP_WR bit (I/O RAM 0x2889[0]) to write the 8-bit datum into NV_RAM
5.
Wait for LKP_WR to clear (LKP_WR auto-clears when the data has been copied to NV RAM).
6.
Repeat steps 3 through 5 until all data has been written to NV RAM.
The NV RAM table can also be read by writing a 1 into the LKP_RD bit (I/O RAM 0x2889[1]). The process
of reading from and writing to the NV RAM is accelerated by setting the LKPAUTOI bit (I/O RAM 0x2887[7]).
When LKPAUTOI is set, LKPADDR[6:0] (I/O RAM 0x2887[6:0]) auto-increments every time LKP_RD or
LKP_WR is pulsed. It is also possible to perform random access of the NV RAM by writing a 0 to the
LKPAUTOI bit and loading the desired address into LKPADDR[6:0].
If the oscillator temperature compensation feature is not being used, it is possible to use the NV
RAM storage area as ordinary battery-backed NV storage space using the procedure described
above to read and write NV RAM data. In this case, the OSC_COMP bit (I/O RAM 0x28A0[5]) is
reset to disable the automatic oscillator temperature compensation feature.
2.5.4.5 RTC Interrupts
The RTC generates interrupts each second and each minute. These interrupts are called RTC_1SEC
and RTC_1MIN. In addition, the RTC functions as an alarm clock by generating an interrupt when the
minutes and hours registers both equal their respective target counts as defined in . The alarm clock
interrupt is called RTC_T. All three interrupts appear in the MPU’s external interrupt 6. See Table 33 in the
interrupt section for the enable bits and flags for these interrupts.
The minute and hour target registers are listed in Table 45.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 71M6543H-IGTR/F | SPECIALTY ANALOG CIRCUIT, PQFP100 |
| 71M6543F-IGTR/F | SPECIALTY ANALOG CIRCUIT, PQFP100 |
| 71M6543H-IGT/F | SPECIALTY ANALOG CIRCUIT, PQFP100 |
| 71M6543G-IGTR/F | SPECIALTY ANALOG CIRCUIT, PQFP100 |
| 71M6543GH-IGTR/F | SPECIALTY ANALOG CIRCUIT, PQFP100 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 71M6543F-IGTR/F | 功能描述:計(jì)量片上系統(tǒng) - SoC Precision 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(shí)鐘頻率:70 Hz 程序存儲(chǔ)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(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-64 封裝:Reel |
| 71M6543FT-IGT/F | 制造商:Maxim Integrated Products 功能描述:ENERGY METER ICS - Rail/Tube |
| 71M6543FT-IGTR/F | 制造商:Maxim Integrated Products 功能描述:3-PHASE SOC, 64KB FLASH, PRES TEMP SENSOR - Tape and Reel |
| 71M6543G | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Selectable Gain of 1 or 8 for One Current Energy Meter ICs Metrology Compensation |
| 71M6543GH | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:電表IC |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。