Title:
DATA FLEXIBLE CONNECTION CIRCUIT
Document Type and Number:
Japanese Patent JPH03148932
Kind Code:
A
Abstract:
PURPOSE: To realize the connection of flexible data by permitting respective packages to control the transmission/reception of signals to a bus by means of the control of CPU.
CONSTITUTION: The bus 1 is a bus line for n-bit parallel transmission provided on a back board, and it can be connected by mounting (m) pieces of packages (2-1)-(2-m). Transmission data which is to be transmitted to the other package from the package 2-1 is inputted to a selection part 21 and transmission data is sent to the bus 1 by a decoding signal from a decoding part 23 with the control from CPU. A selection part 22 selects and receives a decoder on the bus 1 in correspondence with a decoding signal and fetches it in the package 2-1 as reception data.
Inventors:
SHIROMIZU YASUBUMI
YOSHIDA HIDEKI
YOSHIDA HIDEKI
Application Number:
JP28624489A
Publication Date:
June 25, 1991
Filing Date:
November 02, 1989
Export Citation:
Assignee:
NEC CORP
International Classes:
H04L12/40; (IPC1-7): H04L12/40
Domestic Patent References:
| JPS585821A | 1983-01-13 | |||
| JPH01161941A | 1989-06-26 |
Attorney, Agent or Firm:
Naoki Kyomoto (2 outside)