Getac Technology Corporation V110GD Manuale Utente
PIC32MX1XX/2XX
DS61168C-page 128
Preliminary
© 2011 Microchip Technology Inc.
REGISTER 10-6:
U1IR: USB INTERRUPT REGISTER
Bit
Range
Bit
31/23/15/7
Bit
30/22/14/6
Bit
29/21/13/5
Bit
28/20/12/4
Bit
27/19/11/3
Bit
26/18/10/2
Bit
25/17/9/1
Bit
24/16/8/0
31:24
U-0
U-0
U-0
U-0
U-0
U-0
U-0
U-0
—
—
—
—
—
—
—
—
23:16
U-0
U-0
U-0
U-0
U-0
U-0
U-0
U-0
—
—
—
—
—
—
—
—
15:8
U-0
U-0
U-0
U-0
U-0
U-0
U-0
U-0
—
—
—
—
—
—
—
—
7:0
R/WC-0, HS
R/WC-0, HS
R/WC-0, HS
R/WC-0, HS
R/WC-0, HS
R/WC-0, HS
R-0
R/WC-0, HS
STALLIF
ATTACHIF
(1)
RESUMEIF
(2)
IDLEIF
TRNIF
(3)
SOFIF
UERRIF
(4)
URSTIF
(5)
DETACHIF
(6)
Legend:
WC = Write ‘1’ to clear
HS = Hardware Settable bit
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 31-8 Unimplemented: Read as ‘0’
bit 7
bit 7
STALLIF:
STALL Handshake Interrupt bit
1
= In Host mode a STALL handshake was received during the handshake phase of the transaction
In Device mode a STALL handshake was transmitted during the handshake phase of the transaction
0
0
= STALL handshake has not been sent
bit 6
ATTACHIF:
Peripheral Attach Interrupt bit
(1)
1
= Peripheral attachment was detected by the USB module
0
= Peripheral attachment was not detected
bit 5
RESUMEIF:
Resume Interrupt bit
(2)
1
= K-State is observed on the D+ or D- pin for 2.5 µs
0
= K-State is not observed
bit 4
IDLEIF:
Idle Detect Interrupt bit
1
= Idle condition detected (constant Idle state of 3 ms or more)
0
= No Idle condition detected
bit 3
TRNIF:
Token Processing Complete Interrupt bit
(3)
1
= Processing of current token is complete; a read of the U1STAT register will provide endpoint information
0
= Processing of current token not complete
bit 2
SOFIF:
SOF Token Interrupt bit
1
= SOF token received by the peripheral or the SOF threshold reached by the host
0
= SOF token was not received nor threshold reached
bit 1
UERRIF:
USB Error Condition Interrupt bit
(4)
1
= Unmasked error condition has occurred
0
= Unmasked error condition has not occurred
Note 1:
), there is no activity on the USB for
2.5 µs, and the current bus state is not SE0.
2:
When not in Suspend mode, this interrupt should be disabled.
3:
Clearing this bit will cause the STAT FIFO to advance.
4:
Only error conditions enabled through the U1EIE register will set this bit.
5:
Device mode.
6:
Host mode.