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| 型號： | 73S1217F-68M/F/PE |
| 廠商： | Maxim Integrated |
| 文件頁數(shù)： | 114/140頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC SOC SMART CARD READER 68QFN |
| 標(biāo)準(zhǔn)包裝： | 260 |
| 系列： | * |
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DS_1217F_002
73S1217F Data Sheet
Rev. 1.2
75
1.7.16 USB Interface
The 73S1217F provides a single interface, full speed -12Mbps - USB device port as per the Universal
Serial Bus Specification, Revision 2.0
(backward compatible with USB 1.1). USB circuitry gathers the
transceiver, the Serial Interface Engine (SIE), and the data buffers. An internal pull-up to VDD on D+
indicates that the device is a full speed device attached to the USB bus (allows full speed recognition by
the host without adding any external components). When using the USB interface, VDD must be between
3.0V – 3.6V in order to meet the USB VOH requirement. The interface is highly configurable under
firmware control. Control (Endpoint 0), Interrupt IN, Bulk IN and Bulk OUT transfers are supported. Four
endpoints are supported and are configured by firmware:
must be between
3.0V – 3.6V in order to meet the USB VOH requirement. The interface is highly configurable under
firmware control. Control (Endpoint 0), Interrupt IN, Bulk IN and Bulk OUT transfers are supported. Four
endpoints are supported and are configured by firmware:
Endpoint 0, the default (Control) endpoint as required by the USB specification, is used to exchange
control and status information between the 73S1217F and the USB host.
Endpoint 0, the default (Control) endpoint as required by the USB specification, is used to exchange
control and status information between the 73S1217F and the USB host.
Bulk IN Endpoint #1
Bulk IN Endpoint #1
Bulk OUT Endpoint #1
Bulk OUT Endpoint #1
Interrupt IN Endpoint #2
Interrupt IN Endpoint #2
The USB block contains several FIFOs used for communication.
The USB block contains several FIFOs used for communication.
There is a 128-byte RAM FIFO for each BULK endpoint. Maximum Bulk packet size is 64 bytes.
There is a 128-byte RAM FIFO for each BULK endpoint. Maximum Bulk packet size is 64 bytes.
There is a 32-byte RAM FIFO for the interrupt endpoint. Maximum Interrupt packet size is 16 bytes.
There is a 32-byte RAM FIFO for the interrupt endpoint. Maximum Interrupt packet size is 16 bytes.
There is a 16-byte RAM FIFO for the control endpoint. Maximum Control packet size is 16 bytes.
There is a 16-byte RAM FIFO for the control endpoint. Maximum Control packet size is 16 bytes.
Figure 15 shows the simplified block diagram of the USB interface.
Transceivers
VDD
0
MISCtl1
D+
D-
USB Registers
16-Byte FIFO
Control Endpoint 0
128-Byte FIFO
Bulk IN Endpoint 1
128-Byte FIFO
Bulk OUT Endpoint 1
32-Byte FIFO
Interrupt IN Endpoint 2
48MHz
Clock
USB
Full Speed
12Mbps
Serial
Interface
Engine
1
MISCtl1
USBPEN
USBCon
Figure 15: USB Block Diagram
The USB interface consists of a Serial Interface Engine (SIE) that handles NRZI encoding/decoding, bit
stuffing / unstuffing, and CRC generation/checking. It also generates headers for packets to be
transmitted and decodes the headers of received packets. An analog transceiver interfaces with the
external USB bus. The USB interface hardware performs error checking and removes the USB protocol
fields from the incoming messages before passing the data to the firmware. The hardware also adds the
USB protocol fields to the outgoing messages coming from the firmware. The hardware implements
NRZI encoding/decoding, CRC checking/generation (both on data and token packets), device address
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參數(shù)描述 |
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| 73S1217F-68MR/F/PE | 功能描述:8位微控制器 -MCU RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| 73S1217F-EB | 功能描述:開發(fā)板和工具包 - 8051 73S1217F Eval Brd (Usb Cable, Doc. Cd) RoHS:否 制造商:Silicon Labs 產(chǎn)品:Development Kits 工具用于評估:C8051F960, Si7005 核心: 接口類型:USB 工作電源電壓: |
| 73S1217F-EB-Lite | 功能描述:開發(fā)板和工具包 - 8051 73S1217F EVB Lite w/Plug & Play/Usb RoHS:否 制造商:Silicon Labs 產(chǎn)品:Development Kits 工具用于評估:C8051F960, Si7005 核心: 接口類型:USB 工作電源電壓: |
| 73S1217F-IMR/F | 制造商:TERIDIAN 制造商全稱:TERIDIAN 功能描述:Bus-Powered 80515 System-on-Chip with USB, ISO 7816 / EMV, PINpad and More |
| 73S13B | 制造商:QUARTZCOM 制造商全稱:QUARTZCOM the communications company 功能描述:-20 ~ +70 °C commercia l application -30 ~ +75 °C on request |
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