参数资料
型号: 78M6612-DB/OMU-USB
厂商: Maxim Integrated Products
文件页数: 16/46页
文件大小: 0K
描述: KIT DEMO OUTLET MEASUREMENT OMU1
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
已用 IC / 零件: 78M6612
已供物品: 板,缆线,CD
78M6612 Data Sheet
Table 4: Selectable Controls using the DIO_DIR Bits
DS_6612_001
DIO_R Value
0
1
2
3
4
5
6
7
Resource Selected for DIO Pin
NONE
Reserved
T0 (counter0 clock)
T1 (counter1 clock)
High priority I/O interrupt (INT0 rising)
Low priority I/O interrupt (INT1 rising)
High priority I/O interrupt (INT0 falling)
Low priority I/O interrupt (INT1 falling)
1.5.8
LCD Drivers
The device in the 68-pin QFN package contains 20 dedicated LCD segment drivers in addition to the 18
multi-use pins described above. Thus, the device is capable of driving between 80 to 152 pixels of LCD
display with 25% duty cycle (or 60 to 114 pixels with 33% duty cycle). At eight pixels per digit, this
corresponds to 10 to 19 digits.
The device in the 64-pin LQFP package contains 18 dedicated LCD segment drivers in addition to the 17
multi-use pins described above. Thus, the device is capable of driving between 72 to 140 pixels of LCD
display with 25% duty cycle (or 60 to 105 pixels with 33% duty cycle). At eight pixels per digit, this
corresponds to 9 to 17 digits.
The LCD drivers are grouped into four commons and up to 38 segment drivers (68-pin package), or 4
commons and 35 segment drivers (64-pin package). The LCD interface is flexible and can drive either
digit segments or enunciator symbols.
Segment drivers SEG18 and SEG19 can be configured to blink at either 0.5 Hz or 1 Hz. The blink rate is
controlled by LCD_Y . There can be up to four pixels/segments connected to each of these drivers.
LCD_BLKMAP18[3:0] and LCD_BLKMAP19[3:0] identify which pixels, if any, are to blink.
LCD interface memory is powered by the non-volatile supply. The bits of the LCD memory
are preserved in LCD and SLEEP modes, even if their pin is not configured as SEG. In this
case, they can be useful as general- purpose non-volatile storage.
1.5.9
EEPROM Interface
The 78M6612 provides hardware support for an optional two-pin or a three-wire ( μ -wire) EEPROM
interface.
Two-Pin EEPROM Interface
The dedicated 2-pin serial interface communicates with external EEPROM devices. The interface is
multiplexed onto the DIO4 (SCK) and DIO5 (SDA) pins.
Three-Wire ( μ -Wire) EEPROM Interface
A 500 kHz 3-wire interface, using SDATA, SCK, and a DIO pin for CS is also available.
16
Rev 2
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78M6612-GT/F/P2 功能描述:计量片上系统 - SoC 78M6612-GT/F/P2 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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