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參數資料
| 型號： | 73M1903C-IM/F |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQCC32 |
| 封裝： | LEAD FREE, QFN-32 |
| 文件頁數： | 7/48頁 |
| 文件大小： | 487K |
| 代理商： | 73M1903C-IM/F |
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DS_1903C_033
73M1903C Data Sheet
Rev. 5.0
15
4
GPIO Registers
The 73M1903C provides 8 user definable I/O pins. Each pin is programmed separately as either an input
or an output by a bit in a direction register. If the bit in the direction register is set high, the corresponding
pin is an input whose value is read from the GPIO data register. If it is low, the pin will be treated as an
output whose value is set by the GPIO data register.
To avoid unwanted current contention and consumption in the system from the GPIO port before the
GPIO is configured after a reset, the GPIO port I/Os are initialized to a high impedance state. The input
structures are protected from floating inputs, and no output levels are driven by any of the GPIO pins.
The GPIO pins are configured as inputs or outputs when the host controller (or DSP) writes to the GPIO
direction register. The GPIO direction and data registers are initialized to all ones (FFh) upon reset.
Register02 (DATA): Address 02h
Reset State FFh
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
GPIO7
GPIO6
GPIO5
GPIO4
GPIO3
GPIO2
GPIO1
GPIO0
GPIO(7:0)
(0X02[7:0])
Bits in this register will be asserted on the GPIO(7:0) pins if the
corresponding direction register bit is a 0. Reading this address will return data reflecting
the values of pins GPIO(7:0).
Register03 (DIR): Address 03h
Reset State FFh
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
DIR7
DIR6
DIR5
DIR4
DIR3
DIR2
DIR1
DIR0
DIR(7:0)
(0X03[7:0])
This register is used to designate the GPIO pins as either inputs or
outputs. If the register bit is reset to 0, the corresponding GPIO pin is programmed as an
output. If the register bit is set to a 1, the corresponding pin will be configured as an input.
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相關代理商/技術參數 |
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| 73M1903C-IMR/F | 功能描述:電信線路管理 IC Modem Analog Front End RoHS:否 制造商:STMicroelectronics 產品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray |
| 73M1903C-IMR/F1 | 功能描述:電信線路管理 IC RoHS:否 制造商:STMicroelectronics 產品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray |
| 73M1903-EVM-600 | 功能描述:網絡開發工具 73M1903 w/Ppu & 600 Ohm Term-Usa & Japan RoHS:否 制造商:Rabbit Semiconductor 產品:Development Kits 類型:Ethernet to Wi-Fi Bridges 工具用于評估:RCM6600W 數據速率:20 Mbps, 40 Mbps 接口類型:802.11 b/g, Ethernet 工作電源電壓:3.3 V |
| 73M1903-EVM-ETSI | 功能描述:網絡開發工具 73M1903 w/Etsi 203 Complex Imped. Term RoHS:否 制造商:Rabbit Semiconductor 產品:Development Kits 類型:Ethernet to Wi-Fi Bridges 工具用于評估:RCM6600W 數據速率:20 Mbps, 40 Mbps 接口類型:802.11 b/g, Ethernet 工作電源電壓:3.3 V |
| 73M1903-EVM-WW | 功能描述:BOARD DEMO 73M1903 PPU WORLDWIDE RoHS:是 類別:編程器，開發系統 >> 評估演示板和套件 系列:- 產品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:- 主要目的:電源管理，電池充電器 嵌入式:否 已用 IC / 零件:MAX8903A 主要屬性:1 芯鋰離子電池 次要屬性:狀態 LED 已供物品:板 |
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