AT43USB320A-AC Atmel, AT43USB320A-AC Datasheet - Page 93
AT43USB320A-AC
Manufacturer Part Number
AT43USB320A-AC
Description
IC USB MCU EMBED HUB AVR 100LQFP
Manufacturer
Atmel
Series
AVR®r
Datasheet
1.AT43USB320A-AC.pdf
(115 pages)
Specifications of AT43USB320A-AC
Applications
USB Hub/Microcontroller
Core Processor
AVR
Controller Series
AT43USB
Ram Size
512 x 8
Interface
SPI Serial, USB, UART
Number Of I /o
32
Voltage - Supply
4.4 V ~ 5.25 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
100-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Program Memory Type
-
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1443E–USB–4/04
1 = Port is enabled
Set and cleared by the hardware as controlled through Port Control register.
• Bit 0 – PCSTAT: Port Connect Status
0 = No device on this port
1 = Device present on this port
Set to 1 for Port 1. Set and cleared by the hardware after sampling of connect status at EOF2.
Hub Port State Register – HPSTAT1:5
These registers contain the state of the ports’ DP and DM pins, which will be sent to the host
upon receipt of a GetBusState request.
• Bit 7..2 – Reserved
These bits are reserved in the AT43USB320A and will read as zero.
• Bit 1 – DPSTATE: DPlus State
Value of DP at last EOF. Set and cleared by hardware at EOF2.
Set to 1 for Port 1.
• Bit 0 – DMSTATE: DMinus State
Value of DM at last EOF. Set and cleared by hardware at EOF2.
Set to 0 for Port 1.
Port3 $1FAA
Port4 $1FAB
Port5 $1FAC
Port1 $1FA8
Port2 $1FA9
Initial Value
Read/Write
Bit
R
7
–
–
–
–
–
0
R
6
–
–
–
–
–
0
R
5
–
–
–
–
–
0
R
4
–
–
–
–
–
0
R
3
–
–
–
–
–
0
R
2
–
–
–
–
–
0
DPSTATE
DPSTATE
DPSTATE
DPSTATE
DPSTATE
AT43USB320A
1
R
0
DMSTATE
DMSTATE
DMSTATE
DMSTATE
DMSTATE
R
0
0
PSTATE1
PSTATE2
PSTATE3
PSTATE4
PSTATE5
93
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