C541U_99 Datasheet, PDF (139/192 Pages) Siemens Semiconductor Group – 8-BIT CMOS MICROCONTROLLER

Interrupt System
C541U
Special Function Registers DIER (Address C3H)
Reset Value : 00H
Bit No.
C3H
MSB
7
SE0IE
6
DAIE
5
DDIE
4
SBIE
3
SEIE
2
STIE
1
SUIE
LSB
0
SOFIE
DIER
For accessing DIER, SFR EPSEL must be 80H.
Bit
SE0IE
DAIE
DDIE
SBIE
SEIE
STIE
SUIE
SOFIE
Function
USB single ended zero interrupt enable
If SE0IE=0, the single ended zero interrupt is disabled.
If SE0IE=1, the single ended zero interrupt is enabled
USB device attached interrupt enable
If DAIE=0, the USB device attached interrupt is disabled.
If DAIE=1, the USB device attached interrupt is enabled.
USB device detached interrupt enable
If DDIE=0, the USB device detached interrupt is disabled.
If DDIE=1, the USB device detached interrupt is enabled.
USB suspend begin interrupt enable
If SBIE=0, the USB suspend begin interrupt is disabled.
If SBIE=1, the USB suspend begin interrupt is enabled.
USB suspend change interrupt enable
If SEIE=0, the USB suspend change interrupt is disabled.
If SEIE=1, the USB suspend change interrupt is enabled.
USB status interrupt enable
If STIE=0, the USB status interrupt is disabled.
If STIE=1, the USB status interrupt is enabled.
USB setup interrupt enable
If SUIE=0, the USB setup interrupt is disabled.
If SUIE=1, the USB setup interrupt is enabled.
USB start of frame interrupt enable
If SOFIE=0, the USB start of frame interrupt is disabled.
If SOFIE=1, the USB start of frame interrupt is enabled.
Semiconductor Group
7-6
1997-10-01