3-8
Memory Map and Interrupts
Interrupts
SOFTINT(15:1)
Software Interrupt
HARDINT(15:1)
Hardware Interrupt
IC
Interrupt Level 15 Clear
Writing a ‘1’ to any of the SOFTINT bits or IC bit in the Interrupt Clear
pseudo-register clears the associated interrupt.
The Set Soft Int pseudo-register is used to generate software interrupts.
Setting a bit in this register sets the associated bit in the pending register and
triggers an interrupt request on the appropriate level.
System Group
Bit 31
MA – Mask all Interrupts (reserved in the System Interrupt
Pending Register)
1= disable all interrupts
Bit 30
ME – Module Error
Bit 29
Reserved on SPARCbook
Bit 28
Reserved on SPARCbook
Bits 27:23
Reserved
Bit 22
F – Floppy Interrupt
Bit 21
Reserved
Bit 20
Reserved on SPARCbook
Bit 19
T – Level 10 Counter/Timer
Bit 18
SC – SCSI Interrupt
Figure 3-2 System Interrupt Registers
31
16 15 14
00
30 29 28 27
23 22 21 20 19 18 17
13
07 06
MA ME I* M*
F
V* T SC
E S K
SBus IRQ(7:1)
System Interrupt Pending Register
System Target Mask Register (R)
System Target Mask Set Register(W) and
System Target Mask Clear Register (W)
S3GX_TRMBook Page 8 Friday, September 19, 1997 11:39 am
Содержание SPARCbook 3 series
Страница 1: ...Series Technical Reference Manual 980327 02 3 S3GX_TRMBook Page i Friday September 19 1997 11 39 am...
Страница 8: ...viii S3GX_TRMBook Page viii Friday September 19 1997 11 39 am...
Страница 28: ...1 16 Architecture Overview Microcontroller Subsystem S3GX_TRMBook Page 16 Friday September 19 1997 11 39 am...
Страница 44: ...2 16 The SPARC CPU SBus Controller S3GX_TRMBook Page 16 Friday September 19 1997 11 39 am...
Страница 76: ...5 8 SCSI Controller DMA Support S3GX_TRMBook Page 8 Friday September 19 1997 11 39 am...
Страница 82: ...6 6 Ethernet Interface DMA Support for Network Operations S3GX_TRMBook Page 6 Friday September 19 1997 11 39 am...
Страница 96: ...7 14 PCMCIA Interface Microcontroller Registers S3GX_TRMBook Page 14 Friday September 19 1997 11 39 am...
Страница 146: ...9 28 MODEM Class 2 Fax Command Set S3GX_TRMBook Page 28 Friday September 19 1997 11 39 am...
Страница 180: ...11 30 Display Interface RAMDAC S3GX_TRMBook Page 30 Friday September 19 1997 11 39 am...
Страница 210: ...B 10 Connector Information Removable Hard Drive SCSI Connector S3GX_TRMBook Page 10 Friday September 19 1997 11 39 am...
Страница 216: ...Index vi S3GX_TRMBook Page vi Friday September 19 1997 11 39 am...