JPS5682926A - Hang detecting circuit - Google Patents
Hang detecting circuitInfo
- Publication number
- JPS5682926A JPS5682926A JP16105279A JP16105279A JPS5682926A JP S5682926 A JPS5682926 A JP S5682926A JP 16105279 A JP16105279 A JP 16105279A JP 16105279 A JP16105279 A JP 16105279A JP S5682926 A JPS5682926 A JP S5682926A
- Authority
- JP
- Japan
- Prior art keywords
- counter
- latch
- reset
- state
- channel processor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Debugging And Monitoring (AREA)
Abstract
PURPOSE: To reduce the structure of hardware greatly by detecting the hang state of a function block from the progress state of a counter by an information processor consisting of plural function blocks.
CONSTITUTION: When an input-output start instruction is transferred to a channel processor, set-reset latch 1 is set to set latch 20, whose output places counter 24 in a count-enable-state. Counter 24 counts up with every clock. When channel processor CHP0 transfers a complete signal to a main memory controller a certain time later, latch 1 is reset. Consequently, AND gate 29 outputs "1" and counter 24 and latch 20 are reset. On the other hand, when no complete signal is transferred from the channel processor, counter 24 counts up to a maximum count value and then generates a carry signal, so that the hang state will be recognized.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16105279A JPS5682926A (en) | 1979-12-12 | 1979-12-12 | Hang detecting circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16105279A JPS5682926A (en) | 1979-12-12 | 1979-12-12 | Hang detecting circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5682926A true JPS5682926A (en) | 1981-07-07 |
Family
ID=15727686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16105279A Pending JPS5682926A (en) | 1979-12-12 | 1979-12-12 | Hang detecting circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5682926A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10691519B2 (en) | 2016-09-15 | 2020-06-23 | International Business Machines Corporation | Hang detection and recovery |
-
1979
- 1979-12-12 JP JP16105279A patent/JPS5682926A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10691519B2 (en) | 2016-09-15 | 2020-06-23 | International Business Machines Corporation | Hang detection and recovery |
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