ARM ARM926EJ-S Specifications Page 266

  • Download
  • Add to my manuals
  • Print
  • Page
    / 332
  • Table of contents
  • BOOKMARKS
  • Rated. / 5. Based on customer reviews
Page view 265
Vectored Interrupt Controller (VIC)
17-4 Copyright © 2004, 2006 ARM Limited. All rights reserved. ARM DDI 0287B
17.2 Functional description
Figure 17-1 shows a block diagram of the PrimeCell VIC interface.
Figure 17-1 VIC block diagram
Note
A secondary interrupt controller can be implemented in external logic and connected to
one of the VICINTSOURCE[31:24] signals. Use a secondary interrupt controller if
there are too many external peripherals to manage with only the
VICINTSOURCE[31:24] signals.
AHB
interface
ARM926EJ-S Dev. Chip
PL190 VIC
PWRFAIL
VICINTSOURCE[31:21]
Interrupt
request
logic
Control
logic
nVICIRQ
nVICFIQ
IRQ
vector
address
and
priority
logic
[31:21]
[20]
LOW
[18]
[19]
MBX
[17]
DMA
[16]
CLCDC
[15]
SCI
[14]
UART2
[13]
UART1
[12]
UART0
[11]
SSP
[10]
RTC
[9]
GPIO3
[8]
[7]
[6]
[5]
[4]
[3]
[2]
GPIO2
GPIO1
GPIO0
Timer 3 /4
Comms Tx
[1]
[0]
LOW
(software)
Comms Rx
Watchdog
Timer 1 /2
Page view 265
1 2 ... 261 262 263 264 265 266 267 268 269 270 271 ... 331 332

Comments to this Manuals

No comments