U_Imr2 (Usb Interrupt Mask Register 2) - NEC uPD98502 User Manual

6.2.7 U_IMR2 (USB Interrupt Mask Register 2)

This register is used to mask interrupts.
When a bit in this register is set to a '1' and the corresponding bit in the USB General Status Register 2 (Address:
18H) is set to a '1', GSR2 bit in the U_GSR1 will be set to a '1'.
Bits Field
31:22 Reserved
21 FW
20 IFN
19 IEA
18 URSM
17 URST
16 USPD
15:8 Reserved
7 EP2OS
6 EP2ED
5 EP2ND
4 EP1NT
3 EP1ET
2 EP1ND
1 ES
0 SL
CHAPTER 6 USB CONTROLLER
R/W Default
R/W 0 Reserved for future use. Writes '0's.
R/W 0 Frame Number Written:
1 = unmask.
0 = mask.
R/W 0 Incorrect Frame Number:
1 = unmask.
0 = mask.
R/W 0 Incorrect EndPoint Access:
1 = unmask.
0 = mask.
R/W 0 USB Resume:
1 = unmask.
0 = mask.
R/W 0 USB Reset:
1 = unmask.
0 = mask.
R/W 0 USB Suspend:
1 = unmask.
0 = mask.
R/W 0 Reserved for future use. Writes '0's.
R/W 0 Over Size:
1 = unmask.
0 = mask.
R/W 0 Extra Data on EndPoint2:
1 = unmask.
0 = mask.
R/W 0 Isochronous Data Corrupted:
1 = unmask.
0 = mask.
R/W 0 No Token on EndPoint 1:
1 = unmask.
0 = mask.
R/W 0 Extra Token on EndPoint 1:
1 = unmask.
0 = mask.
R/W 0 No Data on EndPoint 1:
1 = unmask.
0 = mask.
R/W 0 Extra SOF:
1 = unmask.
0 = mask.
R/W 0 SOF Loss:
1 = unmask.
0 = mask.
Preliminary User's Manual S15543EJ1V0UM
Description
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