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38K2 Datasheet, PDF (35/151 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER | |||
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38K2 Group
b7
b0
USB interrupt source register (USBIREQ) [address 001716]
Bit symbol
Bit name
EP00
USB function/Endpoint 0
interrupt bit
EP01
USB function/Endpoint 1
interrupt bit
EP02
USB function/Endpoint 2
interrupt bit
EP03
USB function/Endpoint 3
interrupt bit
EP10
USB HUB/Endpoint 0 interrupt
bit
EP11
USB HUB/Endpoint 1 interrupt
bit
SUS
Suspend interrupt bit
RSM
Resume interrupt bit
Function
At reset R W
H/W S/W
This bit is set to â1â when any one of EP00 interrupt 0 0 O â
source registerâs bits at least is set to â1â.
This bit is cleared to â0â by clearing EP00 interrupt
source register to â0016â.
Writing to this bit causes no state change.
This bit is set to â1â when any one of EP01 interrupt 0 0 O â
source registerâs bits at least is set to â1â.
This bit is cleared to â0â by clearing EP01 interrupt
source register to â0016â.
Writing to this bit causes no state change.
This bit is set to â1â when any one of EP02 interrupt 0 0 O â
source registerâs bits at least is set to â1â.
This bit is cleared to â0â by clearing EP02 interrupt
source register to â0016â.
Writing to this bit causes no state change.
This bit is set to â1â when any one of EP03 interrupt 0 0 O â
source registerâs bits at least is set to â1â.
This bit is cleared to â0â by clearing EP03 interrupt
source register to â0016â.
Writing to this bit causes no state change.
This bit is set to â1â when any one of EP10 interrupt 0 0 O â
source registerâs bits at least is set to â1â.
This bit is cleared to â0â by clearing EP10 interrupt
source register to â0016â.
Writing to this bit causes no state change.
This bit is set to â1â when any one of EP11 interrupt 0 0 O â
source registerâs bits at least is set to â1â.
This bit is cleared to â0â by clearing EP11 interrupt
source register to â0016â.
Writing to this bit causes no state change.
0 : No interrupt request issued
0 0 OO
1 : Interrupt request issued
This bit is set to â1â when detecting 3 ms or more of J-
state, using USB clock (fUSB) at 48 MHz.
â0â can be set by software, but â1â cannot be set.
This bit is set to â1â when the USB bus state changes 0 0 O â
from J-state to K-state or SE0 in the resume interrupt
enable bit = â1â. It is also â1â in the condition of internal
clock stopped.
This bit is cleared to â0â by clearing the resume
interrupt enable bit.
Writing to this bit causes no state change.
Fig.38 Structure of USB interrupt source register
Rev.3.00 Oct 15, 2006 page 35 of 147
REJ03B0193-0300
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