The present inventions provide apparatuses and methods for implementing a programmable bus. A programmable bus provides greater functionality and versatility through the ability to manage data transfers according to a number of sample rate clocks. The number of processing components connected to the programmable bus may be varied without a significant amount of physical alternations. Also, the number of data transfers for a given number of processing components may be modified and scheduled acco...

A bus arbiter capable of avoiding needless increase in circuit scale is provided. The bus arbiter controls a bus shared by a CPU (central processing unit) and a plurality of apparatuses for generating addresses. The bus arbiter includes a determination unit for determining if a request of an address is a request of an address where no corresponding device is present, and a processor for passing the request by transmitting an ACK signal without performing a writing operation for a request of a wr...

A bus body comprising opposite side walls, a rear wall and a roof including inner and outer fiberglass wall members which define a space therebetween. The space between the inner and outer wall members is filled with a polypropylene honeycomb material. In a modified version of the bus body, the polypropylene honeycomb material is only positioned between the inner and outer wall members in those areas which may be subjected to moisture.

A bus framer includes an engine which extracts information from a frame of data being transmitted over a time-division multiplexed bus and a processor which retrieves the information from the engine over an internal bus and forwards the information. The bus framer further includes a mapper which maps the frame of data on the time-division multiplexed bus to a read/write bus and a functional module which receives the data from the read/write bus.

A bus system has a bus, a number of units which can be connected to one another via the bus, and a bus controller. The units request the bus controller for bus access when they require a connection to one or more other units, and the bus controller decides which unit will be allocated to the bus. The bus system is distinguished in that at least some of the units which can request bus access are allocated values which indicate how long and/or how frequently the relevant unit can be allocated the ...

A bus construction (20) for connecting a circuit (14) controlled via a separate control port (26c) to a bus controlled by addressing, in which the signal paths (24a, 24b) connected to the I/O ports (26a, 26b) of the circuit (14) with a separate control port are connected to the corresponding signal paths (23a, 23b) of the bus controlled by addressing by means of switches (22a, 22b).

The structural framework of a bus body includes carlines of tubular steel construction spaced longitudinally thereof. The outer sidewall construction of the bus body includes a plurality of lower side panels. The lower edge portion of each side panel is attached to the carlines in laterally spaced relation therefrom by resilient links of tire carcass. The upper edge portion of the lower side panel includes an inwardly offset continuous flange which is juxtaposed to an outwardly extending flange ...

A substantially flat, structural bulkhead is mounted ahead of the designed rear end of a bus body to comprise the structural rear wall of the bus body and also the forward wall of a power unit compartment provided at the after end of the bus body. Non-structural doors complete the sides and rear of the compartment, and conform to the designed contours of the rear end of the bus body. These doors may be swung wide to provide access to the power unit for routine inspection, maintenance and adjustm...

The housing includes two outwardly flanged channel members, four auxiliary housing members of generally Z-shaped cross section, and four end plate members. Each flange of the two flanges of one channel member is secured to one of the two flanges of the other channel member by a row of screws which also secures one pair of the Z-shaped auxiliary housing members in place, reversely positioned with respect to each other and with free end portions pointing toward the other pair of Z-shaped auxiliary...

An Electrical Bus System utilizing insulated conductors which may be readily assembled as desired from standard components to achieve an efficient, low cost installation. The conductors, generally hollow members, are joined by couplings so that any section of conductor may be removed as desired. Straight sections as well as elbows and the like are provided to result in a conductor assembly with a substantially unrestricted passage therethrough so that cool air may be circulated through the condu...