Document Type and Number:
Japanese Patent JPH0225209
Kind Code:
B2
Abstract:
PURPOSE:To simplify the input/output control to a distant place by performing directly a direct input/output action with the serial data converted into a format mode. CONSTITUTION:The data (b) is supplied from a serial data input terminal RxD, and the coincidence is obtained between synchronizing codes through a control circuit. The external interface signal is latched by an I/O data latch as long as an input/output setting signal 20 is set in an input state in case an address code is coincident with this input/output control circuit. Then the parallel data is converted into the serial data by a serial/parallel shift register. Then the serial data is converted into a format together with the synchronizing code outputted from a control circuit, the address code and the parity bit added from a serial data generating part and delivered through a serial data output terminal TxD.
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Inventors:
SEKIDO SAIKICHI
Application Number:
JP8035183A
Publication Date:
June 01, 1990
Filing Date:
May 09, 1983
Export Citation:
Assignee:
NIPPON ELECTRIC CO
International Classes:
G06F5/00; G06F13/00; G06F13/38; H03M9/00; H04L29/02
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