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| 型號(hào)： | ST72T631K2M0 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | LOW SPEED USB 8-BIT MCU FAMILY with up to 16K MEMORY, up to 512 BYTES RAM, 8-BIT ADC, WDG, TIMER, SCI & I2C |
| 中文描述： | 低速USB 8高達(dá)16K的內(nèi)存位微控制器系列，高達(dá)512字節(jié)RAM，8位ADC，水分散粒劑，定時(shí)器，SCI |
| 文件頁(yè)數(shù)： | 65/109頁(yè) |
| 文件大小： | 857K |
| 代理商： | ST72T631K2M0 |
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ST7263
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5.6 USB INTERFACE (USB)
5.6.1 Introduction
The USB Interface implements a low-speed func-
tion interface between the USB and the ST7 mi-
crocontroller. It is a highly integrated circuit which
includes the transceiver, 3.3 voltage regulator, SIE
and DMA. No external components are needed
apart from the external pull-up on USBDM for low
speed recognition by the USB host. The use of
DMA architecture allows the endpoint definition to
be completely flexible. Endpoints can be config-
ured by software as in or out.
5.6.2 Main Features
I
USB Specification Version 1.1 Compliant
I
Supports Low-Speed USB Protocol
I
Two or Three Endpoints (including default one)
depending on the device (see device feature list
and register map)
I
CRC generation/checking, NRZI encoding/
decoding and bit-stuffing
I
USB Suspend/Resume operations
I
DMA Data transfers
I
On-Chip 3.3V Regulator
I
On-Chip USB Transceiver
5.6.3 Functional Description
The block diagram in
Figure 1
, gives an overview
of the USB interface hardware.
For general information on the USB, refer to the
“Universal Serial Bus Specifications” document
available at http//:www.usb.org.
Serial Interface Engine
The SIE (Serial Interface Engine) interfaces with
the USB, via the transceiver.
The SIE processes tokens, handles data transmis-
sion/reception, and handshaking as required by
the USB standard. It also performs frame format-
ting, including CRC generation and checking.
Endpoints
The Endpoint registers indicate if the microcontrol-
ler is ready to transmit/receive, and how many
bytes need to be transmitted.
DMA
When a token for a valid Endpoint is recognized by
the USB interface, the related data transfer takes
place, using DMA. At the end of the transaction, an
interrupt is generated.
Interrupts
By reading the Interrupt Status register, applica-
tion software can know which USB event has oc-
curred.
Figure 36. USB Block Diagram
CPU
MEMORY
Transceiver
3.3V
Voltage
Regulator
SIE
ENDPOINT
REGISTERS
DMA
INTERRUPT
REGISTERS
Address,
data buses
and interrupts
USBDM
USBDP
USBVCC
6 MHz
USBGND
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ST72T631K2M1 | LOW SPEED USB 8-BIT MCU FAMILY with up to 16K MEMORY, up to 512 BYTES RAM, 8-BIT ADC, WDG, TIMER, SCI & I2C |
| ST72T631K4B0 | LOW SPEED USB 8-BIT MCU FAMILY with up to 16K MEMORY, up to 512 BYTES RAM, 8-BIT ADC, WDG, TIMER, SCI & I2C |
| ST72T631K4B1 | LOW SPEED USB 8-BIT MCU FAMILY with up to 16K MEMORY, up to 512 BYTES RAM, 8-BIT ADC, WDG, TIMER, SCI & I2C |
| ST72T631K4D0 | LOW SPEED USB 8-BIT MCU FAMILY with up to 16K MEMORY, up to 512 BYTES RAM, 8-BIT ADC, WDG, TIMER, SCI & I2C |
| ST72631K1B0 | LOW SPEED USB 8-BIT MCU FAMILY with up to 16K MEMORY, up to 512 BYTES RAM, 8-BIT ADC, WDG, TIMER, SCI & I2C |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ST72T631K4B1 | 功能描述:8位微控制器 -MCU OTP EPROM 16K USB/SC 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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 |
| ST72T631K4M1 | 功能描述:8位微控制器 -MCU OTP EPROM 16K USB/SC 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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 |
| ST72T631L4M1 | 制造商:STMicroelectronics 功能描述:8-BIT MICROCONTROLLER - Bulk |
| ST72T632K2B1 | 功能描述:8位微控制器 -MCU OTP EPROM 8K USB/SCI 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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 |
| ST72T632K2M1 | 功能描述:8位微控制器 -MCU OTP EPROM 8K USB/SCI 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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 |
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