AT43USB325E-AC Atmel, AT43USB325E-AC Datasheet - Page 38

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

Specifications of AT43USB325E-AC

• 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: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 64-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

4.13.7
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AT43USB325
Suspend/Resume Interrupt Mask Register – SPRSMSK
The bits of the Suspend/Resume Mask Register are used to make an interrupt caused by an
event in the Suspend/Resume Register visible to the µC. The Suspend/Resume Interrupt
Enable Register bits enables the interrupt while the Suspend/Resume Interrupt Mask Register
allows the µC to control when it wants visibility to an interrupt. 1 = enable mask, 0 = disable
mask.
• Bit 7 – INTD MSK: External Interrupt D Mask
• Bit 6 – INTC MSK: External Interrupt C Mask
• Bit 5 – INTB MSK: External Interrupt B Mask
• Bit 4 – INTA MSK: External Interrupt A Mask
• Bit 3 – BUS INT MSK: USB Reset Interrupt Mask
• Bit 2 – FRWUP MSK: Function Remote Wakeup Interrupt Mask
• Bit 1 – RSM MSK: Resume Interrupt Mask
• Bit 0 – GLB SUSP MSK: Global Suspend Interrupt Enable
Initial Value
Read/Write
$1FF8
Bit
INTD
MSK
W
7
0
INTC
MSK
W
6
0
INTB
MSK
W
5
0
INTA
MSK
W
4
0
BUS INT
MSK
W
3
0
FRWUP
MSK
W
2
0
RSM
MSK
W
1
0
GLB SUSP
MSK
W
0
0
3355C–USB–4/05
SPRSMSK