C8051F340/1/2/3/4/5/6/7

USB Register Definition 16.13. CMINT: USB0 Common Interrupt

R

R

R

R

R

R

R

R

-

-

-

-

SOF

RSTINT

RSUINT

SUSINT

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

Reset Value

00000000

USB Address:

 

0x06

Bits7–4:

Unused. Read = 0000b; Write = don’t care.

Bit3:

SOF: Start of Frame Interrupt

 

Set by hardware when a SOF token is received. This interrupt event is synthesized by hard-

 

ware: an interrupt will be generated when hardware expects to receive a SOF event, even if

 

the actual SOF signal is missed or corrupted.

 

This bit is cleared when software reads the CMINT register.

 

0: SOF interrupt inactive.

 

1: SOF interrupt active.

Bit2:

RSTINT: Reset Interrupt-pending Flag

 

Set by hardware when Reset signaling is detected on the bus.

 

This bit is cleared when software reads the CMINT register.

 

0: Reset interrupt inactive.

 

1: Reset interrupt active.

Bit1:

RSUINT: Resume Interrupt-pending Flag

 

Set by hardware when Resume signaling is detected on the bus while USB0 is in suspend

 

mode.

 

This bit is cleared when software reads the CMINT register.

 

0: Resume interrupt inactive.

 

1: Resume interrupt active.

Bit0:

SUSINT: Suspend Interrupt-pending Flag

 

When Suspend detection is enabled (bit SUSEN in register POWER), this bit is set by hard-

 

ware when Suspend signaling is detected on the bus. This bit is cleared when software

 

reads the CMINT register.

 

0: Suspend interrupt inactive.

 

1: Suspend interrupt active.

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Silicon Laboratories C8051F341 USB Register Definition 16.13. Cmint USB0 Common Interrupt, SOF Rstint Rsuint Susint