Search results
Results from the WOW.Com Content Network
In computing, a non-maskable interrupt (NMI) is a hardware interrupt that standard interrupt-masking techniques in the system cannot ignore. It typically occurs to signal attention for non-recoverable hardware errors. Some NMIs may be masked, but only by using proprietary methods specific to the particular NMI.
The Intel 8085 ("eighty-eighty-five") is an 8-bit microprocessor produced by Intel and introduced in March 1976. [2] It is the last 8-bit microprocessor developed by Intel. It is software-binary compatible with the more-famous Intel 8080 with only two minor instructions added to support its added interrupt and serial input/output features.
"The microprocessor has three hardware based interrupt operations which are found in pins 7 through 9, these are called RST 7.5, RST 6.5, and RST 5.5 respectively. The 8085 has a TRAP interrupt which cannot be disabled (that is, TRAP is a Non-Maskable interrupt or NMI) and an INTR interrupt.
Earlier ARC processors based on the ARCompact and ARCtangent architectures had three link registers: two interrupt link registers (ILINK) and one branch link register (BLINK). [5] [7] [8] [9] The two interrupt link registers were ILINK1 (for level 1 (low priority) maskable interrupts), and ILINK2 (for level 2 (mid priority) maskable interrupts ...
The STEbus (also called the IEEE-1000 bus [1]) is a non-proprietary, processor-independent, computer bus with 8 data lines and 20 address lines. It was popular for industrial control systems in the late 1980s and early 1990s before the ubiquitous IBM PC dominated this market.
The interrupt priority level (IPL) is a part of the current system interrupt state, which indicates the interrupt requests that will currently be accepted. The IPL may be indicated in hardware by the registers in a programmable interrupt controller , or in software by a bitmask or integer value and source code of threads.
A watchdog timer may initiate any of several types of corrective action, including maskable interrupt, non-maskable interrupt, hardware reset, fail-safe state activation, power cycling, or combinations of these. Depending on its architecture, the type of corrective action or actions that a watchdog can trigger may be fixed or programmable.
A non-maskable interrupt (NMI), which can be used to respond to power-down situations or other high-priority events (and allowing a minimalistic Z80 system to easily implement a two-level interrupt scheme in mode 1).