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| 型号： | 71M6531D-IMR/F |
| 厂商： | Maxim Integrated |
| 文件页数： | 44/121页 |
| 文件大小： | 0K |
| 描述： | IC ENERGY METER 128KB 68-QFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 系列： | * |
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Data Sheet 71M6531D/F-71M6532D/F
FDS 6531/6532 005
Table 44: Data/Direction Registers and Internal Resources for DIO 40-51 (71M6532D/F)
DIO
LCD Segment
Pin number
40
60
95
41
61
97
42
62
98
43
63
40
44
64
31
45
65
38
–
–
–
47
67
22
48
68
23
49
69
24
50
70
25
51
71
50
Configuration (DIO
or LCD segment)
4 5 6 7
LCD_BITMAP[63:56 ]
0
1
– 3 4 5
LCD_BITMAP[71:64]
6
7
Data Register
Direction Register
0 = input,
1 = output
–
–
DIO24 and higher do not have SFR registers for direction control. DIO40 and higher do not have SFR
registers for data access. The direction control of these pins is achieved with the LCD_SEGn[3] bits and
data access is controlled with the LCD_SEGn[0] bits in I/O RAM.
DIO56 through DIO58 are dedicated DIO pins. They are controlled with DIO_DIR56[7] through
DIO_DIR58[7] and with DIO_56[4] through DIO_58[4] in I/O RAM.
1.5.9
Digital IO – Common Characteristics for 71M6531D/F and 71M6532D/F
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 bits LCD_BITMAPn . Setting
LCD_BITMAPn = 1 configures the pin for LCD, setting LCD_BITMAPn = 0 configures it for DIO. Once a
pin is configured as DIO, it can be configured independently as an input or output with the DIO_DIR bits
or the LCD_SEGn registers. Input and output data are written to or read from the pins using SFR registers
P0, P1 , and P2 .
DIO24 and higher do not have SFR registers for direction control. DIO40 and higher do not have SFR
registers for data access. The direction control of these pins is achieved with the LCD_SEGn[3] registers
and data access is controlled with the LCD_SEGn[0] registers in I/O RAM.
Since the control for DIO24 through DIO51 is shared with the control for LCD segments, the firmware
must take care not to disturb the DIO pins when accessing the LCD segments and vice versa. Usually,
this requires reading the I/O RAM register, applying a mask and writing back the modified byte.
Table 45: DIO_DIR Control Bit
Table 46: Selectable Control using DIO_DIR Bits
DIO Pin n Function
DIO_DIR [n]
0 1
Input Output
DIO_R
Value
0
1
Resource Selected for DIO Pin
None
Reserved
44
2
3
4
5
6
7
T0 (counter 0 clock)
T1 (counter 1 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)
Rev 2
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 71M6531F | 制造商:TERIDIAN 制造商全称:TERIDIAN 功能描述:Energy Meter IC |
| 71M6531F-DB | 功能描述:开发板和工具包 - 8051 71M6531F Demo Brd RoHS:否 制造商:Silicon Labs 产品:Development Kits 工具用于评估:C8051F960, Si7005 核心: 接口类型:USB 工作电源电压: |
| 71M6531F-IM/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 |
| 71M6531F-IM/F3 | 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 |
| 71M6531F-IM/F4 | 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 |
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