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| 型號(hào)： | 71M6543F-IGT/F |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 模擬信號(hào)調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQFP100 |
| 封裝： | LEAD FREE, LQFP-100 |
| 文件頁(yè)數(shù)： | 87/157頁(yè) |
| 文件大?。?/td> | 2178K |
| 代理商： | 71M6543F-IGT/F |
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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).
相關(guān)PDF資料 |
PDF描述 |
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| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 71M6543F-IGTR/F | 功能描述:計(jì)量片上系統(tǒng) - SoC Precision Energy Meter IC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 處理器系列:71M6511 類型:Metering SoC 最大時(shí)鐘頻率:70 Hz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:7 KB 接口類型:UART 可編程輸入/輸出端數(shù)量:12 片上 ADC: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-64 封裝: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 制造商全稱: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:未知廠家 制造商全稱:未知廠家 功能描述:電表IC |
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