MSC8113 Reference Manual, Rev. 0
Freescale Semiconductor
17-1
Interrupt Processing
17
The MSC8113 interrupt system is optimized for a multi-processing environment and performs
the following functions:
Maximizes the localization of interrupt handling by each SC140 core using two interrupt
controllers: PIC and LIC.
Enables global distribution for important interrupt sources to all the SC140 cores.
Provides a core-to-core signaling mechanism by virtual interrupt generation.
Provides programmable routing of interrupt sources to interrupt lines.
Figure 17-1 illustrates the interrupt scheme. Each of the three extended cores contains a
programmable interrupt controller (PIC) and a local interrupt controller (LIC). The SC140 core
interfaces directly to the PIC, which handles interrupts from internal interrupt sources as well as
some external interrupts. The PIC also receives nine interrupts from the LIC, which handles
interrupts from the MSC8113 peripherals. A Global Interrupt Controller (GIC) handles interrupts
from the SIU, internal signals, and external signals, and it also drives the
INT_OUT
signal. The
GIC generates virtual interrupts from any SC140 core or the external host to any SC140 core or
to the
INT_OUT
line. This configuration provides flexibility in the interrupt handling, by enabling
any combination of SC140 cores and an external host to handle interrupts. The virtual system can
generate interrupt pulses that can be captured locally in the LIC of the target SC140 core to
maximize the localization of the interrupt handling.
Summary of Contents for MSC8113
Page 1: ...MSC8113 Reference Manual Tri Core 16 Bit Digital Signal Processor MSC8113RM Rev 0 May 2008 ...
Page 20: ...MSC8113 Reference Manual Rev 0 xx Freescale Semiconductor Contents ...
Page 28: ...MSC8113 Reference Manual Rev 0 xxviii Freescale Semiconductor ...
Page 56: ...MSC8113 Reference Manual Rev 0 1 28 Freescale Semiconductor MSC8113 Overview ...
Page 76: ...MSC8113 Reference Manual Rev 0 2 20 Freescale Semiconductor SC140 Core Overview ...
Page 134: ...MSC8113 Reference Manual Rev 0 4 30 Freescale Semiconductor System Interface Unit SIU ...
Page 168: ...MSC8113 Reference Manual Rev 0 6 18 Freescale Semiconductor Boot Program ...
Page 180: ...MSC8113 Reference Manual Rev 0 7 12 Freescale Semiconductor Clocks ...
Page 260: ...MSC8113 Reference Manual Rev 0 8 80 Freescale Semiconductor Memory Map ...
Page 300: ...MSC8113 Reference Manual Rev 0 9 40 Freescale Semiconductor Extended Core ...
Page 304: ...MSC8113 Reference Manual Rev 0 10 4 Freescale Semiconductor MQBus and M2 Memory ...
Page 308: ...MSC8113 Reference Manual Rev 0 11 4 Freescale Semiconductor SQBus ...
Page 590: ...MSC8113 Reference Manual Rev 0 17 46 Freescale Semiconductor Interrupt Processing ...
Page 614: ...MSC8113 Reference Manual Rev 0 18 24 Freescale Semiconductor Debugging ...
Page 622: ...MSC8113 Reference Manual Rev 0 19 8 Freescale Semiconductor Internal Peripheral Bus IPBus ...
Page 724: ...MSC8113 Reference Manual Rev 0 21 32 Freescale Semiconductor UART ...
Page 920: ...MSC8113 Reference Manual Rev 0 25 150 Freescale Semiconductor Ethernet Controller ...
Page 1171: ...MSC8113 Reference Manual Rev 0 Freescale Semiconductor C 61 EF wait_rts P 01077FFC 9F rts 71 ...
Page 1172: ...MSC8113 Reference Manual Rev 0 C 62 Freescale Semiconductor MSC8113 Boot Code ...
Page 1202: ...MSC8113 Reference Manual Rev 0 Index 30 Freescale Semiconductor Index ...