AT43USB320A-AC Atmel, AT43USB320A-AC Datasheet - Page 35

• Manufacturer Part Number: AT43USB320A-AC
• Description: IC USB MCU EMBED HUB AVR 100LQFP
• Manufacturer: Atmel
• Series: AVR®r

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: -

1443E–USB–4/04
Suspend/Resume Interrupt Enable Register – SPRSIE
• Bit 7..3 – Res: Reserved Bits
These bits are reserved and are always read as zeros.
• Bit 3 – BUS INT EN: USB Reset Interrupt Enable
When the BUS INT EN bit is set, the USB and microcontroller resets are separated. A USB
bus reset (SE0 for longer than 3 ms) will reset the USB hardware only and not the microcon-
troller. However, an interrupt to the microcontroller will be generated and bit 3 of SPRSR is
set.
• Bit 2 – FRWUP IE: Function Remote Wakeup Interrupt Enable
Setting the FRWUP IE bit will initiate an interrupt whenever the FRWUP bit of SPRSR is set.
• Bit 1 – RSM IE: Resume Interrupt Enable
Setting the RSM IE bit will initiate an interrupt whenever the RSM bit of SPRSR is set.
• Bit 0 – GLB SUSP IE: Global Suspend Interrupt Enable
Setting the GLB SUSP IE bit will initiate an interrupt whenever the GLB SUSP bit of SPRSR is
set.
Initial Value
Read/Write
$1FF9
Bit
R
7
–
0
R
6
–
0
5
–
R
0
R
4
–
0
R/W
3
–
0
FRWUP
2
R
0
AT43USB320A
RSM
R
1
0
GLB SUSP
R
0
0
SPRSIE
35