AT43USB325E-AU Atmel, AT43USB325E-AU Datasheet - Page 37

• Manufacturer Part Number: AT43USB325E-AU
• Description: IC USB KEYBOARD CTRLR 64LQFP
• Manufacturer: Atmel
• Series: AVR®r

Specifications of AT43USB325E-AU

• Applications: Keyboard Controller
• Core Processor: AVR
• Program Memory Type: SRAM (16 kB)
• Controller Series: AT43USB
• Ram Size: 512 x 8
• Interface: SPI, 3-Wire Serial
• Number Of I /o: 42
• Voltage - Supply: 4.4 V ~ 5.25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 64-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4.13.6
3355C–USB–4/05
Suspend/Resume Interrupt Enable Register – SPRSIE
• · Bit 7 – INTD EN: External Interrupt D Enable
Setting the INTD EN bit will initiate an interrupt whenever the INTD bit of SPRSR is set.
• · Bit 6 – INTC EN: External Interrupt C Enable
Setting the INTC EN bit will initiate an interrupt whenever the INTC bit of SPRSR is set.
• · Bit 5 – INTB EN: External Interrupt B Enable
Setting the INTD EN bit will initiate an interrupt whenever the INTB bit of SPRSR is set.
• · Bit 4 – INTA EN: External Interrupt A Enable
Setting the INTD EN bit will initiate an interrupt whenever the INTA bit of SPRSR is set.
• · Bit 3 – BUS INT EN: USB Reset Interrupt Enable
When the BUS INT EN bit is set, the USB and µC resets are separated. A USB bus reset (SE0
for longer than 3 ms) will reset the USB hardware only and not the µC. However, an interrupt to
the µC 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
INTD
R/W
EN
7
0
INTC
R/W
EN
6
0
INTB
R/W
EN
5
0
INTA
R/W
EN
4
0
BUS INT
R/W
EN
3
0
FRWUP
R/W
IE
2
0
RSM
R/W
IE
1
0
AT43USB325
SUSP IE
GLB
R/W
0
0
SPRSIE
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