Abstract: The present invention provides a semiconductor device and a method for controlling the semiconductor device, the semiconductor device including memory regions; program prohibition information units storing program prohibition information to be used for determining whether to prohibit or allow programming in the memory regions corresponding to the program prohibition information units; a first prohibition information control circuit that prohibits a change of the program prohibition information from a program prohibiting state with respect to a memory region based on first prohibition information; and a second prohibition information control circuit that prohibits a change of the program prohibition information from a program allowing state to a program prohibiting state with respect to the corresponding memory region based on second prohibition information with respect to the corresponding memory region.

Abstract: The present invention provides a semiconductor device and a method for controlling the semiconductor device, the semiconductor device including memory regions; program prohibition information units storing program prohibition information to be used for determining whether to prohibit or allow programming in the memory regions corresponding to the program prohibition information units; a first prohibition information control circuit that prohibits a change of the program prohibition information from a program prohibiting state with respect to a memory region based on first prohibition information; and a second prohibition information control circuit that prohibits a change of the program prohibition information from a program allowing state to a program prohibiting state with respect to the corresponding memory region based on second prohibition information with respect to the corresponding memory region.

Abstract: The present invention provides a semiconductor device and a method for controlling the semiconductor device, the semiconductor device including memory regions that include nonvolatile memory cells; program prohibition information units, the program prohibition information units storing program prohibition information to be used for determining whether to prohibit or allow programming in a plurality of memory regions corresponding to the program prohibition information units; a first prohibition information control circuit that prohibits a change of the program prohibition information from a program prohibiting state to a program allowing state with respect a memory region, the memory region is one of the plurality of corresponding memory regions, based on first prohibition information to be used for determining whether to prohibit a change of the program prohibition information from a program prohibiting state to a program allowing state with respect to the corresponding memory region; and a second prohibitio

Abstract: A semiconductor device includes: a memory cell array that includes non-volatile memory cells; a first memory region and a second memory region that are located in the memory cell array, the first memory region being protected during a protecting period, the second memory region being not protected; an address change circuit that changes an address in an address space of the first memory region and the second memory region in the memory cell array, to an address in an address space of the second memory region, during the protecting period; and a control circuit that prohibits access to the first memory region, and allows access to the second region, during the protecting period.

Abstract: A semiconductor device includes: memory regions that include non-volatile memory cells; disabling information memory units that correspond to the memory regions, each of the disabling information memory units storing first program disabling information indicating whether programming is to be disabled or enabled in each corresponding memory region; a program disabling information selection circuit that outputs second program disabling information for disabling programming in a corresponding memory region, regardless of the first program disabling information, when programming is disabled collectively in the memory regions in accordance with collective program disabling information indicating whether programming is to be disabled collectively in the memory regions, the program disabling information selection circuit outputting the first program disabling information as the second program disabling information when programming is not collectively disabled; and a program control circuit that disables or enables p

Abstract: The present invention provides a semiconductor device and a method for controlling the semiconductor device, the semiconductor device including memory regions that include nonvolatile memory cells; program prohibition information units, the program prohibition information units storing program prohibition information to be used for determining whether to prohibit or allow programming in a plurality of memory regions corresponding to the program prohibition information units; a first prohibition information control circuit that prohibits a change of the program prohibition information from a program prohibiting state to a program allowing state with respect a memory region, the memory region is one of the plurality of corresponding memory regions, based on first prohibition information to be used for determining whether to prohibit a change of the program prohibition information from a program prohibiting state to a program allowing state with respect to the corresponding memory region; and a second prohibitio

Abstract: A semiconductor device includes: memory regions that include non-volatile memory cells; disabling information memory units that correspond to the memory regions, each of the disabling information memory units storing first program disabling information indicating whether programming is to be disabled or enabled in each corresponding memory region; a program disabling information selection circuit that outputs second program disabling information for disabling programming in a corresponding memory region, regardless of the first program disabling information, when programming is disabled collectively in the memory regions in accordance with collective program disabling information indicating whether programming is to be disabled collectively in the memory regions, the program disabling information selection circuit outputting the first program disabling information as the second program disabling information when programming is not collectively disabled; and a program control circuit that disables or enables p

Abstract: A semiconductor device includes: a memory cell array that includes non-volatile memory cells; a first memory region and a second memory region that are located in the memory cell array, the first memory region being protected during a protecting period, the second memory region being not protected; an address change circuit that changes an address in an address space of the first memory region and the second memory region in the memory cell array, to an address in an address space of the second memory region, during the protecting period; and a control circuit that prohibits access to the first memory region, and allows access to the second region, during the protecting period.

Abstract: A cable clamp shim, wherein a side part thereof is bent at a right angle to the remainder thereof, with the slit being in the remainder portion for holding the sleeve of the clamp, so that the side part of the shim fits closely to the outside surface of the sleeve and thereby eliminates possibility of injury to the worker by the edge of the shim, and improves the positioning security of the shim in the clamping arrangement.

Abstract: Disclosed herein is a novel and heretofore never anounced anchoring apparatus for telephone wire comprising a thickish plate-like base body of small size having a T-shaped suspending rod member protruded upwardly and forwardly from the upper side of the base body, three bores perforating the body in a front and rear direction for guiding set screws, a bore perforating the base body in a front and rear direction for guiding a set bolt, while the rear side of the body has a laterally elongated groove of a circular arc shape in section and a dent surface of circular arc shape in section along the longitudinal axis of the body.

Abstract: Disclosed herein is a suspending wire for cable clamps having a quite simple and easily operable construction and providing with a rear end portion fixed onto the cable clamp and a fore end portion forked into two of the same length to be twisted once each other to assume a constant twisted form due to their own elastisity in order to define a ring-like portion at the fore end portion, said constant twisted form being rendered enable to be untwisted easily by the ordinary worker's finger end operation.

Abstract: There is disclosed a reflection light preventive device comprising a cylinder-like transparent glass body being included many granulated permanent magnets therein to be possessed of the Faraday effect and a .lambda./4 polarizer disposed at the front and rear of said glass body respectively in a shifted relation each other in their planes of polarization.

Abstract: An optical telephone wire comprising an optical conductor having a first covering of a circular cross-section and a messenger cable having a second covering of rectangular cross-section with one set of sides of the two sets of parallel sides of the second covering being longer than the diameter of the first convering and with the first and second coverings being integrally juxtaposed along their longitudinal axes so that spaces exist between the other set of sides of the second covering and the circular surface of the first covering.

Abstract: Disclosed herein is a short-circuit device of a gas-filled triple-pole discharge-tube type arrester used for telephone lines, wherein a coil-like resilient short-circuit lead is arranged between the lead of an earth electrode and the leads of two line electrodes in an entwined condition through coatings of low temperature-meltable insulator.

Abstract: Disclosed herein is a simple and compact ratchet device comprises a ratchet wheel, a pawl and a pin member preventing reversal of motion, which is provided integrally with portions adaptable to various screw-rotating tools on the market.

Abstract: An optical telephone wire comprising an optical conductor having a first covering of rectangular cross-section and a messenger cable having a second covering of rectangular cross-section with one set of sides of the two sets of parallel sides of the second covering being longer than one set of sides of the two sets of parallel sides of the first covering and with the first and second coverings being integrally juxtaposed along their longitudinal axes so that one side of the other set of parallel sides of each of the coverings forms together a common surface and one side of the one set of two sets of parallel sides of each of the coverings are offset from each other in a step like manner.

Abstract: Disclosed herein is a hook device comprising two members of a base plate and a suspending ring having respectively a quite simple and easily made form, the latter being mounted on the cut and raised frame portions of the former in loosely suspending and in unturned relation through a quite easy means.

Abstract: Disclosed herein is a shim having a quite simple and easily operable shape and is used for a cable clamp composed of a wedge-like member and a sleeve-like member, those members being telescopically assembled to clamp a cable therebetween. Said sleeve-like member is linked with said shim through a simple and low cost means.

Abstract: Disclosed herein is a cable clamp having a quite simple and easily operable construction, wherein a wedge-like member and a sleeve-like member are telescopically assembled to clamp a cable therebetween, said two members being adapted to be in an inseparable (or linked) condition at all times.