JPH0250899U - - Google Patents
Info
- Publication number
- JPH0250899U JPH0250899U JP12714688U JP12714688U JPH0250899U JP H0250899 U JPH0250899 U JP H0250899U JP 12714688 U JP12714688 U JP 12714688U JP 12714688 U JP12714688 U JP 12714688U JP H0250899 U JPH0250899 U JP H0250899U
- Authority
- JP
- Japan
- Prior art keywords
- dynamic ram
- register
- read data
- latched
- completed
- 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
- 239000004065 semiconductor Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Dram (AREA)
Description
第１図は本考案の一実施例のマイクロプロセツ
サ使用の中央処理装置のブロツク図、第２図は第
１図のタイムチヤートである。
１……マイクロプロセツサ、２……データバス
、３……制御線バス、４……ＤＲＡＭ、５……Ｄ
ＲＡＭ制御部、６……データバスゲート、７……
ラツチレジスタ。
FIG. 1 is a block diagram of a central processing unit using a microprocessor according to an embodiment of the present invention, and FIG. 2 is a time chart of FIG. 1...Microprocessor, 2...Data bus, 3...Control line bus, 4...DRAM, 5...D
RAM control unit, 6...Data bus gate, 7...
Latch register.
Claims (1)
の制御回路において、ダイナミツクＲＡＭの外部
に読出しデータをラツチするレジスタを設け、該
レジスタに読出しデータをラツチし、ダイナミツ
クＲＡＭの読出しサイクルを完了させ、その直後
にダイナミツクＲＡＭのリフレツシユ動作をする
よう構成したことを特徴とする半導体メモリ制御
装置。 Dynamic RAM that requires refresh
In the control circuit, a register for latching read data is provided outside the dynamic RAM, the read data is latched in the register, the read cycle of the dynamic RAM is completed, and the dynamic RAM is refreshed immediately thereafter. A semiconductor memory control device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12714688U JPH0250899U (en) | 1988-09-30 | 1988-09-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12714688U JPH0250899U (en) | 1988-09-30 | 1988-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0250899U true JPH0250899U (en) | 1990-04-10 |
Family
ID=31379308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12714688U Pending JPH0250899U (en) | 1988-09-30 | 1988-09-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0250899U (en) |
-
1988
- 1988-09-30 JP JP12714688U patent/JPH0250899U/ja active Pending