SH7721 datasheet(839/1524 Pages) RENESAS

839 / 1524 page

Section 24

USB Host Controller (USBH)

Rev. 3.00 Jan. 18, 2008 Page 777 of 1458

REJ09B0033-0300

Bit

Bit Name

Initial

Value

R/W

Description

R/W

Unrecoverable Error Enable

0: Ignored

1: Interrupt generation due to unrecoverable error enabled

R/W

Resume Detected Enable

0: Ignored

1: Interrupt generation due to Resume Detected enabled

R/W

Start of Frame Enable

0: Ignored

1: Interrupt generation due to Start of Frame enabled

WDH

R/W

Write-back Done Head Enable

0: Ignored

1: Interrupt generation due to WritebackDoneHead

enabled

R/W

Scheduling Overrun Enable

0: Ignored

1: Interrupt generation due to Scheduling Overrun enabled

24.3.6

Hc Interrupt Disable Register (USBHID)

Each disable bit in USBHID corresponds to the related interrupt bit in USBHIS. USBHID is

related to USBHIE. Therefore, writing a 1 to a bit in this register clears the corresponding bit in

USBHIE, while writing a 0 to a bit leaves the corresponding bit in USBHIE. When read, the

current value of USBHIE is returned.

Bit

Bit Name

Initial

Value

R/W

Description

MIE

R/W

Master Interrupt Enable

0: Ignored

1: Interrupt generation due to the specified event disabled

R/W

Ownership Change Enable

0: Ignored

1: Interrupt generation due to OwnershipChange disabled

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