JPS5638655A - Microprocessor - Google Patents
MicroprocessorInfo
- Publication number
- JPS5638655A JPS5638655A JP11377879A JP11377879A JPS5638655A JP S5638655 A JPS5638655 A JP S5638655A JP 11377879 A JP11377879 A JP 11377879A JP 11377879 A JP11377879 A JP 11377879A JP S5638655 A JPS5638655 A JP S5638655A
- Authority
- JP
- Japan
- Prior art keywords
- latch circuit
- signal
- circuit
- microprocessor
- time measuring
- 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
Abstract
PURPOSE: To obtain the timer signal at the output terminal, without the burden of software, by providing the time measuring circuit and the latch circuit of microprocessor in one chip.
CONSTITUTION: In the microprocessor, the time measuring circuit 1 constituted with the binary counter in 8-bit and generating the signal in the period of time set with the control section, latch circuit 2 taking the signal from the time measuring circuit 1 as sampling clock, and inversion circuit 6 invering the signal obtained at the output of latch circuit 2 and giving it to the input of the latch circuit 2, are provided in one chip. The output of the latch circuit 2 is connected to the external terminal 3. Since the timer signal is obtained at the terminal 3, buzzer can intermittently by energized through the connection of buzzer and lamp, enabling to flicker the lamp.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11377879A JPS5638655A (en) | 1979-09-05 | 1979-09-05 | Microprocessor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11377879A JPS5638655A (en) | 1979-09-05 | 1979-09-05 | Microprocessor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5638655A true JPS5638655A (en) | 1981-04-13 |
Family
ID=14620869
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11377879A Pending JPS5638655A (en) | 1979-09-05 | 1979-09-05 | Microprocessor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5638655A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6804732B2 (en) | 2002-03-29 | 2004-10-12 | Denso Corporation | Port sampling circuit apparatus incorporated in a microcomputer |
-
1979
- 1979-09-05 JP JP11377879A patent/JPS5638655A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6804732B2 (en) | 2002-03-29 | 2004-10-12 | Denso Corporation | Port sampling circuit apparatus incorporated in a microcomputer |
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