收藏本站
FDS_6533_6534_004
71M6533/G/H and 71M6534/H Data Sheet
SERIAL READ
8 bit CMD
16 bit Address
DATA[ADDR]
DATA[ADDR+1]
PCSZ
Extended Read . . .
0
7
8
23
24
31
32
39
PSCK
(From Host) PSDI
(From 653X) PSDO
x
C7
C6
C5
C0
HI Z
A15
A14
A1
A0
x
D7
D6
D1
D0
D7
D6
D1
D0
SERIAL WRITE
8 bit CMD
16 bit Address
DATA[ADDR]
DATA[ADDR+1]
PCSZ
Extended Write . . .
PSCK
0
7
8
23
24
31
32
39
(From Host) PSDI
x
C7
C6
C5
C0
A15
A14
A1
A0
D7
D6
D1
D0
D7
D6
D1
D0
x
(From 653X) PSDO
HI Z
RAM bits will be in the same state as after a wake-up from SLEEP or LCD
modes (see the I/O RAM description in Section 5.2 for a list of I/O RAM bit
0x0000.
A status bit, WD_OVF, is set when the WDT overflow occurs. This bit is
preserved in LCD mode (not in SLEEP mode) and can be read by the
Figure 16: SPI Slave Port: Typical Read and Write Operations
SFR locations, i.e. the control registers internal to the 71M653x MPU, are not accessible via the SPI port.
In cases where these registers have to be accessed, for example to control DIO pins, a protocol that uses
the MPU has to be used for read and write operations involving the SFRs.
1.5.12 Hardware Watchdog Timer
An independent, robust, fixed-duration, watchdog timer (WDT) is included in the 71M6533/71M6534. It
uses the RTC crystal oscillator as its time base and must be refreshed by the MPU firmware at least every
V1 1.5 seconds. When not refreshed on time, the WDT overflows and the
part is reset as if the RESET pin were pulled high, except that the I/O
V3P3 WDT dis-
V3P3 - 10mV abled
states after RESET and wake-up). 4100 oscillator cycles (or 125 ms) after
V3P3 - the WDT overflow, the MPU will be launched from program address
400mV
Normal
operation,
WDT
enabled
MPU when WAKE rises to determine if the part is initializing after a WDT
VBIAS overflow event or after a power-up. After it is read, the MPU firmware
must clear WD_OVF . The WD_OVF bit is also cleared by the RESET pin.
Battery
modes
There is no internal digital state that deactivates the WDT. The WDT can
be disabled by tying the V1 pin to V3P3 (see Figure 17 ). Of course, this
also deactivates V1 power fault detection. Since there is no method in
firmware to disable the crystal oscillator or the WDT, it is guaranteed that
whatever state the part might find itself in, upon watchdog overflow, the
part will be reset to a known state.
0V
Figure 17: Functions Defined by V1
Asserting ICE_E will also deactivate the WDT. This is the only method that will work in BROWNOUT mode.
In normal operation, the WDT is reset by periodically writing a one to the WDT_RST bit. The watchdog timer
is also reset when the internal signal WAKE=0 (see Section 2.5 Wake Up Behavior ).
Rev 2
53
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
71M6541F-DB DEMO BOARD 71M6541F
71M6543F-DB-CT DEMO BOARD 71M6543F-DB-CT
72-CNV-5 CONVERTER RS-232 TO RS-422 5V
72346-001 72346-1-SCA-II REC
72347-001LF CONN RECEPT SCA2 20POS VERT PCB
72436-001LF 80POS EXT HT. REC SCA-2
72442-201LF CONN RECEPT SCA2 80POS VERT PCB
72512-001 5 X 12 COVERS
相关代理商/技术参数
71M6534H-IGT/F 功能描述:计量片上系统 - SoC Precision 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
71M6534H-IGTR/F 功能描述:计量片上系统 - SoC Precision 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
71M6534H-IGTR/F1 功能描述:计量片上系统 - SoC Precision 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
71M6534-IGT/F 功能描述:计量片上系统 - SoC Precision 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
71M6534-IGTR/F 功能描述:计量片上系统 - SoC Precision 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
71M6541D 制造商:未知厂家 制造商全称:未知厂家 功能描述:71M6541D/71M6541F/71M6541G/71M6542F/71M6542G 是 TeridianTM 的第4 代高集成度单相电表SoC
71M6541D_1111 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Energy Meter ICs
71M6541D-IGT/F 功能描述:计量片上系统 - SoC Precision 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