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71M6531D 参数 Datasheet PDF下载

71M6531D图片预览
型号: 71M6531D
PDF下载: 下载PDF文件 查看货源
内容描述: 电能计量IC [Energy Meter IC]
分类和应用:
文件页数/大小: 115 页 / 2363 K
品牌: TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
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FDS 6531/6532 005  
Data Sheet 71M6531D/F-71M6532D/F  
DIO  
17  
37  
13  
5
28 29  
48 49  
47 24  
LCD Segment  
Pin number  
0
1
Configuration (DIO  
or LCD segment)  
LCD_MAP[39:32]  
LCD_MAP[55:48]  
1
1
4
5
Data Register  
DIO2 = P2 (SFR 0xA0)  
DIO3 = P3 (SFR 0xB0)  
Direction Register  
0 = input, 1 = output  
DIO_DIR2 (SFR 0xA1)  
DIO  
43 44 45 46  
63 64 65 66  
LCD Segment  
Pin number  
29 23 28  
5
7
0
1
2
Configuration (DIO  
or LCD segment)  
LCD_BITMAP[63:56] LCD_BITMAP[64:71]  
Data Register  
Direction Register  
0 = input, 1 = output  
1.5.8 Digital I/O – 71M6532D/F  
The 71M6532D/F includes up to 43 pins of general-purpose digital I/O. These pins are compatible with 5-  
V inputs (no current limiting resistors are needed). The Digital I/O pins can be categorized as follows:  
Dedicated DIO pins (4 pins):  
o
DIO3  
o
DIO56 – DIO58 (3 pins)  
DIO/LCD segment pins (a total of 37 pins):  
o
o
o
o
DIO4/SEG24 – DIO27/SEG47 (24 pins)  
DIO29/SEG49, DIO30/SEG50 (2 pins)  
DIO40/SEG60 – DIO45/SEG65 (6 pins)  
DIO47/SEG67 – DIO51/SEG71 (5 pins)  
DIO pins combined with other functions (2 pins): DIO2/OPT_TX, DIO1/OPT_RX  
On reset or power-up, all DIO pins are inputs until they are configured for the desired direction under  
MPU control. The pin function can be configured by the I/O RAM registers LCD_BITMAPn. Setting  
v1.2  
© 2005-2009 TERIDIAN Semiconductor Corporation  
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