JPS5794979A - Bubble memory tester - Google Patents
Bubble memory testerInfo
- Publication number
- JPS5794979A JPS5794979A JP16957780A JP16957780A JPS5794979A JP S5794979 A JPS5794979 A JP S5794979A JP 16957780 A JP16957780 A JP 16957780A JP 16957780 A JP16957780 A JP 16957780A JP S5794979 A JPS5794979 A JP S5794979A
- Authority
- JP
- Japan
- Prior art keywords
- pulse
- circuit
- determining
- bubble memory
- edge
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
- G11C19/02—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements
- G11C19/08—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements using thin films in plane structure
- G11C19/0875—Organisation of a plurality of magnetic shift registers
Abstract
PURPOSE:To set an optional pulse for some cycle by determining the leading and trailing edges of a prescribed pulse selected in two pulse sequences which synchronize with bubble memory cycles and with intermediate points of them. CONSTITUTION:A pulse sequence generating circuit 3a generates a pulse sequence which synchronizes with bubble memory cycles, and a pulse sequence generating circuit 3b generates a pulse sequence which synchronizes with intermediate points of the bubble memory cycles. Those pulse sequences are input- ted to a pulse leading-edge selecting circuit 4 and a pulse trailing-edge select- ing circuit 5 respectively to select pulses in each pulse sequence with a selection signal from a control circuit 6. The pulse outputted from the circuit 4 and determining a leading edge is ANDed with a pulse GR, outputted from an operation range control circuit 8 and determining operation range, through an AND gate G, whose output is inputted to the set terminal of an FF7. On the other hand, the pulse outputted by the circuit 5 and determining a trailing edge is inputted, as it is, to the reset terminal of the FF7 to output a desired pulse from its output terminal Q.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16957780A JPS5794979A (en) | 1980-12-03 | 1980-12-03 | Bubble memory tester |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16957780A JPS5794979A (en) | 1980-12-03 | 1980-12-03 | Bubble memory tester |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5794979A true JPS5794979A (en) | 1982-06-12 |
Family
ID=15889053
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16957780A Pending JPS5794979A (en) | 1980-12-03 | 1980-12-03 | Bubble memory tester |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5794979A (en) |
-
1980
- 1980-12-03 JP JP16957780A patent/JPS5794979A/en active Pending
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