收藏本站
参数资料
型号： 71M6543F-IGT/F
厂商： MAXIM INTEGRATED PRODUCTS INC
元件分类： 模拟信号调理
英文描述： SPECIALTY ANALOG CIRCUIT, PQFP100
封装： LEAD FREE, LQFP-100
文件页数： 87/157页
文件大小： 2178K
代理商： 71M6543F-IGT/F
71M6543F/H and 71M6543G/GH Data Sheet
v1.2
2008–2011 Teridian Semiconductor Corporation
35
Table 14: Port Registers (SEGDIO0-15)
SFR
Name
SFR
Address
D7
D6
D5
D4
D3
D2
D1
D0
P0
80
DIO_DIR[3:0]
DIO[3:0]
P1
90
DIO_DIR[7:4]
DIO[7:4]
P2
A0
DIO_DIR[11:8]
DIO[11:8]
P3
B0
DIO_DIR[15:12]
DIO[15:11]
All DIO ports on the chip are bi-directional. Each of them consists of a latch (SFR P0 to P3), an output
driver and an input buffer, therefore the MPU can output or read data through any of these ports. Even if
a DIO pin is configured as an output, the state of the pin can still be read by the MPU, for example when
counting pulses issued via DIO pins that are under CE control.
At power-up SEGDIO0-15 are configured as inputs. It is necessary to write PORT_E = 1 (I/O
RAM 0x270C[5]) to enable SEGDIO0-DIO15. The default PORT_E = 0 blocks any momentary
output transient pulses that would otherwise occur when SEGDIO0-15 are reset on power-up.
Clock Stretching (CKCON[2:0], SFR 0x8E)
The CKCON[2:0] field defines the stretch memory cycles that are used for MOVX instructions when
accessing external peripherals. The practical value of this register for the 71M6543 is to guarantee access
to XRAM between CE, MPU, and SPI. The default setting of CKCON[2:0] (001) should be changed to 000
for best performance.
Table 15 shows how the signals of the External Memory Interface change when stretch values are set
from 0 to 7. The widths of the signals are counted in MPU clock cycles. The post-reset state of the
CKCON[2:0] field (001), which is shown in bold in the table, performs the MOVX instructions with a
stretch value equal to 1.
Table 15: Stretch Memory Cycle Width
CKCON[2:0]
Stretch
Value
Read Signal Width
Write Signal Width
memaddr
memrd
memaddr
memwr
000
0
1
2
1
001
1
2
3
1
010
2
3
4
2
011
3
4
5
3
100
4
5
6
4
101
5
6
7
5
110
6
7
8
6
111
7
8
9
7
2.4.4
Instruction Set
All instructions of the generic 8051 microcontroller are supported. A complete list of the instruction set
and of the associated op-codes is contained in the 71M654x Software User’s Guide (SUG).
2.4.5
80515 Power Reduction Modes
The 80515 core provides two power reduction modes: Idle Mode and Power-Down Mode. These power
saving modes are invoked by setting the appropriate control bit in the PCON SFR register (SFR 0x87).
Idle Mode halts the MPU while allowing the interrupt, timer, and serial port functions to continue to
operate. Once Idle Mode has been entered, an interrupt event automatically ends Idle Mode. After the
interrupt has been serviced, program execution continues with the instruction immediately following the
instruction that set the Idle Mode bit. To enter Idle Mode, the firmware must set the IDL bit (bit 0) in the
PCON SFR register (SFR 0x87).
相关PDF资料
PDF描述
71M6543H-IGTR/F SPECIALTY ANALOG CIRCUIT, PQFP100
71M6543F-IGTR/F SPECIALTY ANALOG CIRCUIT, PQFP100
71M6543H-IGT/F SPECIALTY ANALOG CIRCUIT, PQFP100
71M6543G-IGTR/F SPECIALTY ANALOG CIRCUIT, PQFP100
71M6543GH-IGTR/F SPECIALTY ANALOG CIRCUIT, PQFP100
相关代理商/技术参数
参数描述
71M6543F-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
71M6543FT-IGT/F 制造商:Maxim Integrated Products 功能描述:ENERGY METER ICS - Rail/Tube
71M6543FT-IGTR/F 制造商:Maxim Integrated Products 功能描述:3-PHASE SOC, 64KB FLASH, PRES TEMP SENSOR - Tape and Reel
71M6543G 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Selectable Gain of 1 or 8 for One Current Energy Meter ICs Metrology Compensation
71M6543GH 制造商:未知厂家 制造商全称:未知厂家 功能描述:电表IC
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

*
*
*