UPSD3422E-40U6 STMicroelectronics, UPSD3422E-40U6 Datasheet - Page 154
UPSD3422E-40U6
Manufacturer Part Number
UPSD3422E-40U6
Description
MCU 8BIT 8032 64KB FLASH 80TQFP
Manufacturer
STMicroelectronics
Series
µPSDr
Datasheet
1.UPSD3422EV-40U6.pdf
(300 pages)
Specifications of UPSD3422E-40U6
Core Processor
8032
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, IrDA, SPI, UART/USART, USB
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
46
Program Memory Size
80KB (80K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
80-TQFP, 80-VQFP
For Use With
497-5577 - BOARD EVAL USB POWER SWITCH497-5518 - EVAL BOARD RFID READER
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Other names
497-4903
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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Part Number:
UPSD3422E-40U6
Manufacturer:
STMicroelectronics
Quantity:
10 000
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USB interface
25.2
Note:
154/300
Types of transfers
The USB specification defines four types of transfers, Bulk, Interrupt, Isochronous, and
Control.
The UPSD34xx supports all types of transfers except Isochronous.
●
●
Figure 50. IN and OUT bulk transfers
Bulk Transfers (see
Bulk data is transferred in both directions and is used with both IN and OUT endpoints.
Packets may be 8, 16, 32, or 64 bytes in length. Bulk transfers occur in bursts, and are
scheduled by the host when there is available time on the bus. While there is no
guaranteed delivery time for bulk transfers, the accuracy of the data is guaranteed due
to automatic retries for erroneous data. Bulk transfers are typically used for mass
storage, printer, and scanner data.
Interrupt Transfers (see
Interrupt data is a lot like bulk data but travels only in one direction, from the device to
the host, so only IN endpoints are used. Interrupt data holds packet sizes ranging from
1 to 64 bytes. Interrupt endpoints have an associated polling interval, meaning that the
host sends IN tokens at a periodic interval to the host on a regular basis. Interrupt
transfers are typically used for human interface devices such as keyboards, mice, and
joysticks.
OUT
IN
ADDR
ADDR
Token packet
Token packet
ENDP
ENDP
Figure
Figure
CRC5
CRC5
50)
51)
Data1
Data1
UPSD3422, UPSD3433, UPSD3434, UPSD3454
Data packet
Data packet
Payload
Payload
data
data
CRC16
CRC16
Handshake packet
Handshake packet
ACK
ACK
AI10490b
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