欢迎访问ic37.com |
会员登录 免费注册
发布采购

78M6612-IMR/F 参数 Datasheet PDF下载

78M6612-IMR/F图片预览
型号: 78M6612-IMR/F
PDF下载: 下载PDF文件 查看货源
内容描述: 单相,双插座电源和电能计量IC [Single-Phase, Dual-Outlet Power and Energy Measurement IC]
分类和应用: 插座
文件页数/大小: 111 页 / 1528 K
品牌: TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
 浏览型号78M6612-IMR/F的Datasheet PDF文件第40页浏览型号78M6612-IMR/F的Datasheet PDF文件第41页浏览型号78M6612-IMR/F的Datasheet PDF文件第42页浏览型号78M6612-IMR/F的Datasheet PDF文件第43页浏览型号78M6612-IMR/F的Datasheet PDF文件第45页浏览型号78M6612-IMR/F的Datasheet PDF文件第46页浏览型号78M6612-IMR/F的Datasheet PDF文件第47页浏览型号78M6612-IMR/F的Datasheet PDF文件第48页  
78M6612 Data Sheet  
DS_6612_001  
Table 39: DIO_DIR Control Bit  
DIO_DIR [n]  
0
1
DIO Pin n Function  
Input  
Output  
Additionally, if DIO6 and DIO7 are declared outputs, they can be configured as dedicated pulse outputs  
(WPULSE = DIO6, VARPULSE = DIO7) using DIO_PW and DIO_PV registers. In this case, DIO6 and  
DIO7 are under CE control. DIO4 and DIO5 can be configured to implement the EEPROM Interface.  
If the optical UART is not used, TX1 and RX1 can be configured as dedicated DIO pins (DIO1, DIO2,  
see Section 1.5.6 Optical Interface).  
A 3-bit configuration word, I/O RAM register, DIO_Rx (0x2009[2:0] through 0x200E[6:4]) can be used for  
certain pins, when configured as DIO, to individually assign an internal resource such as an interrupt or a  
timer control (see Table 38 for DIO pins available for this option). This way, DIO pins can be tracked  
even if they are configured as outputs.  
Tracking DIO pins configured as outputs is useful for pulse counting without external  
hardware.  
When driving LEDs, relay coils etc., the DIO pins should sink the current into ground (as  
shown in Figure 8, right), not source it from V3P3D (as shown in Figure 8, left). This is  
due to the resistance of the internal switch that connects V3P3D to either V3P3SYS or  
VBAT.  
When configured as inputs, the dual-function (DIO/SEG) pins should not be pulled above  
V3P3SYS in MISSION and above VBAT in LCD and BROWNOUT modes. Doing so will  
distort the LCD waveforms of the other pins. This limitation applies to any pin that can be  
configured as a LCD driver.  
The control resources selectable for the DIO pins are listed in Table 40. If more than one input is  
connected to the same resource, the resources are combined using a logical OR.  
78M6612  
78M6612  
V3P3SYS  
3.3V  
LED  
V3P3SYS  
VBAT  
V3P3D  
3.3V  
VBAT  
V3P3D  
DIO1  
DIO1  
R
LED  
R
DGND  
DGND  
Not recommended  
Recommended  
Figure 8: Connecting an External Load to DIO Pins  
44  
Rev. 1.2  
 
 
 复制成功!