JPS5574624A - Channel unit - Google Patents
Channel unitInfo
- Publication number
- JPS5574624A JPS5574624A JP14788078A JP14788078A JPS5574624A JP S5574624 A JPS5574624 A JP S5574624A JP 14788078 A JP14788078 A JP 14788078A JP 14788078 A JP14788078 A JP 14788078A JP S5574624 A JPS5574624 A JP S5574624A
- Authority
- JP
- Japan
- Prior art keywords
- block
- count
- section
- transfer
- byte
- 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
- Bus Control (AREA)
Abstract
PURPOSE: To enable to transfer a plurality of fixed length of data blocks with a single CCW (channel command word), by reserving the block chain bit and block count in CCW.
CONSTITUTION: CCW4 is loaded to the register 37 from the storage 31, and the byte count section and block count section are transferred to the count register 32. The byte count section is used for count calculation of data transfer in one block with the byte counter 38 and subtractor 36. When the data transfer of one block's share is finished, the flag detector 35 inspects the effectiveness of the block chain bit BC, and if effective, the command represented in CCW4 is again delivered to the input and output unit. The block counter section is renewed by -1 with the subtractor 33 every said operation. The all zero detection section 34 detects the end of all block transfer end.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14788078A JPS5574624A (en) | 1978-12-01 | 1978-12-01 | Channel unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14788078A JPS5574624A (en) | 1978-12-01 | 1978-12-01 | Channel unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5574624A true JPS5574624A (en) | 1980-06-05 |
Family
ID=15440302
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14788078A Pending JPS5574624A (en) | 1978-12-01 | 1978-12-01 | Channel unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5574624A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05626U (en) * | 1991-06-19 | 1993-01-08 | 東洋エコー株式会社 | Wrapping paper box |
US5517670A (en) * | 1992-12-30 | 1996-05-14 | International Business Machines Corporation | Adaptive data transfer channel employing extended data block capability |
US11319106B2 (en) | 2017-08-24 | 2022-05-03 | Stora Enso Oyj | Leakproof and liquid-tight packaging box of corrugated board and method for fabricating it |
-
1978
- 1978-12-01 JP JP14788078A patent/JPS5574624A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05626U (en) * | 1991-06-19 | 1993-01-08 | 東洋エコー株式会社 | Wrapping paper box |
US5517670A (en) * | 1992-12-30 | 1996-05-14 | International Business Machines Corporation | Adaptive data transfer channel employing extended data block capability |
US5539918A (en) * | 1992-12-30 | 1996-07-23 | International Business Machines Corporation | Extension of data block capability in a data transfer channel |
US11319106B2 (en) | 2017-08-24 | 2022-05-03 | Stora Enso Oyj | Leakproof and liquid-tight packaging box of corrugated board and method for fabricating it |
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