at43usb320a ATMEL Corporation, at43usb320a Datasheet - Page 35

• Manufacturer Part Number: at43usb320a
• Description: Full-speed Usb Microcontroller With An Embedded Hub
• Manufacturer: ATMEL Corporation

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
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