SH7721 datasheet(880/1524 Pages) RENESAS

880 / 1524 page

Section 25

USB Function Controller (USBF)

Rev. 3.00 Jan. 18, 2008 Page 818 of 1458

REJ09B0033-0300

25.3.10

Interrupt Select Register 4 (ISR4)

ISR4 selects the interrupt requests to the INTC to be indicated in interrupt flag register 4. When a

bit in ISR4 is cleared to 0, the corresponding interrupt is requested as a USBFI0 interrupt. When a

bit is set to 1, the corresponding interrupt is requested as a USBFI1 interrupt. With the initial

value, each of the interrupt source flags in the interrupt flag register 4 is selected as a USBFI0

interrupt.

Bit

Bit Name

Initial Value R/W

Description

7 to 1



All 0

Reserved

These bits are always read as 0. The write value should

always be 0.

TMOUT IS

R/W

TMOUT Interrupt Select

25.3.11

Interrupt Enable Register 0 (IER0)

IER0 enables the interrupt requests of the interrupt flag register 0. When an interrupt flag is set to

1 while the corresponding bit of each interrupt is set to 1, the interrupt request set in the interrupt

select register 0 is issued.

When an interrupt flag is set to 1 while the corresponding bit of each interrupt is set to 1, the

INTN pin set in the interrupt select register 0 is asserted low and an interrupt request is issued.

Bit

Bit Name

Initial Value R/W Description

BRST IE

R/W BRST Interrupt Enable

EP1 FULL IE

R/W EP1 FULL Interrupt Enable

EP2 TR IE

R/W EP2 TR Interrupt Enable

EP2 EMPTY IE

R/W EP2 EMPTY Interrupt Enable

SETUP TS IE

R/W SETUP TS Interrupt Enable

EP0o TS IE

R/W EP0o TS Interrupt Enable

EP0i TR IE

R/W EP0i TR Interrupt Enable

EP0i TS IE

R/W EP0i TS Interrupt Enable

SH7721 Datasheet(PDF) 880 Page - Renesas Technology Corp

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