COBHAM GR740 User Manual

GR740-UM-DS, Nov 2017, Version 1.7 306 www.cobham.com/gaisler
GR740
and the processor should then be enabled through Processor boot register. The Processor Reset Start
Address registers are visible and writable from the register space of all internal controllers.
GR740 revision 1: Registers are available to allow starting a halted processor from an arbitrary 8 byte
aligned entry point. The processor can be started with the same register write as when the entry point
is written, or the processor can be started later using the regular multiprocessor status register bit.
An error register is also added to allow monitoring processors for error mode, and to allow forcing a
specific processor into error mode. This can be used to monitor and re-boot processors without reset-
ting the system.
A read-only bit in the multiprocessor status register is available that signals availability of the revision
1 functionality.
21.3 Registers
The core is controlled through registers mapped into APB address space. The register set for internal
controller n is accessed at offset 0x1000*n.
Table 378.Interrupt Controller registers
APB address offset Register
0x000 Interrupt level register
0x004 Interrupt pending register
0x008 Interrupt force register (NCPU = 0)
0x00C Interrupt clear register
0x010 Multiprocessor status register
0x014 Broadcast register
0x018 Reserved (silicon revision 0)
Error mode status register (silicon revision 1)
0x01C Watchdog control register
0x020 Asymmetric multiprocessing control register
0x024 Interrupt controller select register for processor 0 - 3
0x028 - 0x03C Reserved
0x040 Processor 0 interrupt mask register
0x044 Processor 1 interrupt mask register
0x048 Processor 2 interrupt mask register
0x04C Processor 3 interrupt mask register
0x050 - 0x07C Reserved
0x080 Processor 0 interrupt force register
0x084 Processor 1 interrupt force register
0x088 Processor 2 interrupt force register
0x08C Processor 3 interrupt force register
0x090 - 0xBC Reserved
0x0C0 Processor 0 extended interrupt acknowledge register
0x0C4 Processor 1 extended interrupt acknowledge register
0x0C8 Processor 2 extended interrupt acknowledge register
0x0CC Processor 3 extended interrupt acknowledge register
0x0D0 - 0x0FC Reserved
0x100 Interrupt timestamp counter register
0x104 Interrupt timestamp 0 control register
0x108 Interrupt assertion timestamp 0 register

COBHAM GR740 Specifications

General

Brand	COBHAM
Model	GR740
Category	Computer Hardware
Language	English