| Line 1547... |
Line 1547... |
|
|
`edge_trigger = 0|1'
|
`edge_trigger = 0|1'
|
If 1 (true, the default), the programmable interrupt controller is
|
If 1 (true, the default), the programmable interrupt controller is
|
edge triggered. If 0 (false), it is level triggered.
|
edge triggered. If 0 (false), it is level triggered.
|
|
|
|
Note: When configured to be edge triggered, interrupts must
|
|
be cleared in the PICSR by the processor writing a '0' to the
|
|
appropriate bit.
|
|
|
|
When configured to be level triggered, the interrupt must be
|
|
cleared by lowering the peripheral's IRQ line. Writing '0' to
|
|
the PICSR has no effect.
|
|
|
|
Peripherals can call the function `report_interrupt' to
|
|
signal an interrupt request. When configured for level
|
|
triggered interrupts, the function `clear_interrupt' will
|
|
clear the appropriate bit in the PICSR. `clear_interrupt' has
|
|
no effect when Or1ksim is configured for edge triggered
|
|
interrupts - interrupts must be cleared by the processor
|
|
writing '0' to the appropriate bit in the PICSR in this case.
|
|
|
|
|
|
|
File: or1ksim.info, Node: Power Management Configuration, Next: Branch Prediction Configuration, Prev: Interrupt Configuration, Up: Core OpenRISC Configuration
|
File: or1ksim.info, Node: Power Management Configuration, Next: Branch Prediction Configuration, Prev: Interrupt Configuration, Up: Core OpenRISC Configuration
|
|
|
3.3.6 Power Management Configuration
|
3.3.6 Power Management Configuration
|
| Line 4433... |
Line 4449... |
Node: CPU Configuration40280
|
Node: CPU Configuration40280
|
Node: Memory Configuration44399
|
Node: Memory Configuration44399
|
Node: Memory Management Configuration51121
|
Node: Memory Management Configuration51121
|
Node: Cache Configuration53498
|
Node: Cache Configuration53498
|
Node: Interrupt Configuration55884
|
Node: Interrupt Configuration55884
|
Node: Power Management Configuration56620
|
Node: Power Management Configuration57446
|
Node: Branch Prediction Configuration57897
|
Node: Branch Prediction Configuration58723
|
Node: Debug Interface Configuration59257
|
Node: Debug Interface Configuration60083
|
Node: Peripheral Configuration61600
|
Node: Peripheral Configuration62426
|
Node: Memory Controller Configuration62226
|
Node: Memory Controller Configuration63052
|
Node: UART Configuration66006
|
Node: UART Configuration66832
|
Node: DMA Configuration69525
|
Node: DMA Configuration70351
|
Node: Ethernet Configuration71392
|
Node: Ethernet Configuration72218
|
Node: GPIO Configuration75474
|
Node: GPIO Configuration76300
|
Node: Display Interface Configuration77107
|
Node: Display Interface Configuration77933
|
Node: Frame Buffer Configuration79416
|
Node: Frame Buffer Configuration80242
|
Node: Keyboard Configuration81280
|
Node: Keyboard Configuration82106
|
Node: Disc Interface Configuration83518
|
Node: Disc Interface Configuration84344
|
Node: Generic Peripheral Configuration88622
|
Node: Generic Peripheral Configuration89448
|
Node: Interactive Command Line90917
|
Node: Interactive Command Line91743
|
Node: Verification API97891
|
Node: Verification API98717
|
Node: Code Internals102321
|
Node: Code Internals103147
|
Node: Coding Conventions102904
|
Node: Coding Conventions103730
|
Node: Global Data Structures107331
|
Node: Global Data Structures108157
|
Node: Concepts109988
|
Node: Concepts110814
|
Ref: Output Redirection110133
|
Ref: Output Redirection110959
|
Node: Internal Debugging110672
|
Node: Internal Debugging111498
|
Node: Regression Testing111196
|
Node: Regression Testing112022
|
Node: GNU Free Documentation License114985
|
Node: GNU Free Documentation License115811
|
Node: Index137392
|
Node: Index138218
|
|
|
End Tag Table
|
End Tag Table
|
