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UPSD3422 Datasheet(PDF) 153 Page - STMicroelectronics

Part # UPSD3422
Description  Turbo Plus Series Fast Turbo 8032 MCU with USB and Programmable Logic
PDF  293 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

UPSD3422 Datasheet(HTML) 153 Page - STMicroelectronics

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uPSD34xx
USB interface
153/293
Command Value register (USCV). The USB Setup Command Index register (USCI) is used
to select the byte from the command buffer that is read when accessing the USCV register.
25.4
USB registers
The USB module is controlled via registers mapped into the SFR space. The USB SFRs
consist of the following:
●
UADDR: USB device address
●
UPAIR: USB FIFO pairing control
●
UIE0~3: USB interrupt enable
●
UIF0~3: USB interrupt flags
●
UCTL: USB Control
●
USTA: USB Status
●
USEL: USB Endpoint and direction select
●
UCON: USB Selected FIFO control register
●
USIZE: USB Selected FIFO size register
●
UBASE: USB Base Address register
●
USCI: USB Setup Command index
●
USCV: USB Setup Command value
The memory map for the USB SFRs, the individual bit names, and the reset values are
shown in Table 69.
Table 69.
uPSD34xx USB SFR register map
SFR
Addr
(hex)
SFR
Name
Bit Name and <Bit Address>
Reset
Value
(hex)
Comment
7
6
5
4
321
0
E2
UADDR
–
USBADDR[6:0]
00
USB Address
E3
UPAIR
–
–
–
–
PR3OU
T
PR1OUT
PR3IN
PR1IN
00
USB Pairing
Control
E4
UIE0
–
–
–
–
RSTIE
SUSPNDIE
EOPIE
RESUMIE
00
USB Global
Interrupt
Enable
E5
UIE1
–
–
–
IN4IE
IN3IE
IN2IE
IN1IE
IN0IE
00
USB IN FIFO
Interrupt
Enable
E6
UIE2
–
–
–
OUT4IE
OUT3IE
OUT2IE
OUT1IE
OUT0IE
00
USB OUT
FIFO Interrupt
Enable
E7
UIE3
–
–
–
NAK4IE
NAK3IE
NAK2IE
NAK1IE
NAK0IE
00
USB IN FIFO
NAK Int.
Enable
E8
UIF0
GLF
INF
OUTF
NAKF
RSTF
SUSPNDF
EOPF
RESUMF
00
USB Global
Interrupt Flag
E9
UIF1
–
–
–
IN4F
IN3F
IN2F
IN1F
IN0F
00
USB IN FIFO
Interrupt Flag
EA
UIF2
–
–
–
OUT4F
OUT3F
OUT2F
OUT1F
OUT0F
00
USB OUT
FIFO Interrupt
Flag



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