参数资料
| 型号： | 71M6521FE-DB |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 34/107页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO FOR 71M6521FE |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电度表/功率表 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | 71M6521 |
| 已供物品： | 2 个板，线缆，CD，电源 |
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71M6521DE/DH/FE Data Sheet
Interrupt Enable
NAME LOCATION
Interrupt Flag
NAME LOCATION
Interrupt Description
EX0
EX1
EX2
EX3
EX4
EX5
EX6
EX_XFER
EX_RTC
EX_FWCOL
EX_PLL
SFR A8[[0]
SFR A8[2]
SFR B8[1]
SFR B8[2]
SFR B8[3]
SFR B8[4]
SFR B8[5]
2002[0]
2002[1]
2007[4]
2007[5]
IE0
IE1
IEX2
IEX3
IEX4
IEX5
IEX6
IE_XFER
IE_RTC
IE_FWCOL0
IE_FWCOL1
IE_PLLRISE
IE_PLLFALL
IE_WAKE
IE_PB
SFR 88[1]
SFR 88[3]
SFR C0[1]
SFR C0[2]
SFR C0[3]
SFR C0[4]
SFR C0[5]
SFR E8[0]
SFR E8[1]
SFR E8[3]
SFR E8[2]
SFRE8[6]
SFRE8[7]
SFRE8[5]
SFRE8[4]
External interrupt 0
External interrupt 1
External interrupt 2
External interrupt 3
External interrupt 4
External interrupt 5
External interrupt 6
XFER_BUSY interrupt (int 6)
RTC_1SEC interrupt (int 6)
FWCOL0 interrupt (int 2)
FWCOL1 interrupt (int 2)
PLL_OK rise interrupt (int 4)
PLL_OK fall interrupt (int 4)
AUTOWAKE flag
PB flag
Table 47: Interrupt Enable and Flag Bits
The AUTOWAKE and PB flag bits are shown in Table 47 because they behave similarly to interrupt flags, even though
they are not actually related to an interrupt. These bits are set by hardware when the MPU wakes from a push button
or wake timeout. The bits are reset by writing a zero. Note that the PB flag is set whenever the PB is pushed, even if
the part is already awake.
Each interrupt has its own flag bit, which is set by the interrupt hardware and is reset automatically by the MPU
interrupt handler (0 through 5). XFER_BUSY and RTC_1SEC, which are OR-ed together, have their own enable and
flag bits in addition to the interrupt 6 enable and flag bits (see Table 47), and these interrupts must be cleared by the
MPU software.
When servicing the XFER_BUSY and RTC_1SEC interrupts, special care must be taken to avoid lock-
up conditions: If, for example, the XFER_BUSY interrupt is serviced, control must not return to the main
program without checking the RTC_1SEC flag. If this rule is ignored, a RTC_1SEC interrupt appearing
during the XFER_BUSY service routine will disable the processing of any XFER_BUSY or RTC_1SEC
interrupt, since both interrupts are edge-triggered (see the Software User’s Guide SUG652X).
The external interrupts are connected as shown in Table 47. The polarity of interrupts 2 and 3 is programmable in the
MPU via the I3FR and I2FR bits in T2CON . Interrupts 2 and 3 should be programmed for falling sensitivity. The
generic 8051 MPU literature states that interrupts 4 through 6 are defined as rising edge sensitive. Thus, the
hardware signals attached to interrupts 5 and 6 are inverted to achieve the edge polarity shown in Table 47.
SFR (special function register) enable bits must be set to permit any of these interrupts to occur. Likewise, each
interrupt has its own flag bit that is set by the interrupt hardware and is reset automatically by the MPU interrupt
handler (0 through 5). XFER_BUSY and RTC_1SEC , which are OR-ed together, have their own enable and flag bits in
addition to the interrupt 6 enable and flag bits (see Table 47), and these interrupts must be cleared by the MPU
software.
Page: 34 of 107
Rev 3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 71M6521FE-IGT | 制造商:Maxim Integrated Products 功能描述:Metering Systems on a Chip - SoC Residential Energy Meter IC |
| 71M6521FE-IGT/F | 功能描述:计量片上系统 - SoC Residential Energy Meter IC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel |
| 71M6521FE-IGT/F1 | 功能描述:计量片上系统 - SoC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel |
| 71M6521FE-IGTR | 制造商:Maxim Integrated Products 功能描述:Metering Systems on a Chip - SoC Residential Energy Meter IC |
| 71M6521FE-IGTR/F | 功能描述:计量片上系统 - SoC Residential Energy Meter IC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel |
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