Abstract: A memory control apparatus configured to access a memory that involves synchronization of a clock signal for command transfer and a clock signal for data transfer with each other, the clock signal for command transfer and the clock signal for data transfer being independent of each other, includes an output unit configured to change an output mode of the clock signal for data transfer based on a memory access state and to output the clock signal for data transfer to the memory based on the output mode.

Abstract: A memory controller for controlling DRAM, comprising: a first storage unit configured to store requests each comprising information about a priority and an access type received by the memory controller; a first control unit configured to select requests from the requests; a second storage unit configured to store the selected requests; and a second control unit configured to rearrange the requests stored in the second storage unit to generate a DRAM command and to issue the DRAM command to the DRAM, wherein the second control unit generates a priority access type indicating which access type request to preferentially issue to the DRAM, and the first control unit selects the requests, based on the information about the priority and the access type of each of the requests stored in the first storage unit, and the priority access type.

Abstract: A memory controller comprises a holding unit that holds a plurality of memory accesses to a memory that operates with a first clock. The memory controller generates a plurality of command requests for causing the memory to operate based on the plurality of memory accesses; determines, in synchronization with a second clock having a lower frequency than the first clock, whether a plurality of commands corresponding to the plurality of command requests are issuable, based on a constraint on issuance timings that are respectively set for the plurality of commands; selects, in synchronization with the second clock, one command to be issued to the memory from among commands that have been determined by the determining unit to be issuable; and outputs the selected one command to the memory in synchronization with the first clock.

Abstract: A memory control circuit is configured to access a memory including a plurality of banks. The memory control circuit comprises: a holding unit configured to hold an access request from an external circuit; a management unit configured to manage states of the plurality of banks; a determination unit configured to determine, based on an access type of an access request held in the holding unit and the states of the plurality of banks, which access type of command issuance that is read or write is to be prioritized; and an issuance unit configured to issue a command of an access request corresponding to the access type determined to be prioritized by the determination unit, among the access requests held in the holding unit.

Abstract: A memory control apparatus configured to access a memory that involves synchronization of a clock signal for command transfer and a clock signal for data transfer with each other, the clock signal for command transfer and the clock signal for data transfer being independent of each other, includes an output unit configured to change an output mode of the clock signal for data transfer based on a memory access state and to output the clock signal for data transfer to the memory based on the output mode.

Abstract: A memory control circuit is configured to access a memory including a plurality of banks. The memory control circuit comprises: a holding unit configured to hold an access request from an external circuit; a management unit configured to manage states of the plurality of banks; a determination unit configured to determine, based on an access type of an access request held in the holding unit and the states of the plurality of banks, which access type of command issuance that is read or write is to be prioritized; and an issuance unit configured to issue a command of an access request corresponding to the access type determined to be prioritized by the determination unit, among the access requests held in the holding unit.

Abstract: A bus system comprises a master, a first slave, a second slave, and a bus. The master is configured to be able to issue a second request to the second slave after issuing a first request to the first slave and before receiving a response to the first request. The bus comprises: a determination unit configured to, upon receiving the second request, determine whether to permit a transfer of the second request to the second slave; and a suspending unit configured to suspend the transfer of the second request to the second slave while it is determined by the determination unit that the transfer is not permitted. The determination unit determines whether or not the transfer is permitted based on a notification from the first slave regarding processing of the first request.

Abstract: A lever-type connector has a lever that rotates about a shaft on a first housing between a retracted position and a connection start position. The first housing and a second housing are connected by rotation of the lever from the connection start position. A detector is movable between a standby position and a detection position with respect to the lever. The lever includes a lock on an end separated from the shaft. The second housing includes a full locking portion to engage the lock when the housings are connected. The detector locks the lock at the standby position and becomes movable to the detection position when the full locking portion engages the lock. The first housing includes a housing-side lock, and the lever includes a lever-side lock that locks the housing-side lock at the retracted position. The lever-side lock is at a position different from the lock of the lever.

Abstract: A bus system comprises a master, a first slave, a second slave, and a bus. The master is configured to be able to issue a second request to the second slave after issuing a first request to the first slave and before receiving a response to the first request. The bus comprises: a determination unit configured to, upon receiving the second request, determine whether to permit a transfer of the second request to the second slave; and a suspending unit configured to suspend the transfer of the second request to the second slave while it is determined by the determination unit that the transfer is not permitted. The determination unit determines whether or not the transfer is permitted based on a notification from the first slave regarding processing of the first request.

Abstract: A connector assembly includes a female housing (11) and a male housing (12) connectable to each other. Male terminal fittings (39) have tabs (41) projecting into a receptacle (36) of the male housing (12), and a moving plate (15) to be movably accommodated into the receptacle (36). The moving plate (15) includes a plate body (94) with positioning holes (96) enabling the insertion of the tabs (41) and a peripheral wall (95) connected to a periphery of the plate body (94) and slidable on an inner surface of the receptacle (36). An operating portion (103) for removal is provided on the peripheral wall (95) and is exposed from the receptacle (36).

Abstract: A lever-type connector has a lever that rotates about a shaft on a first housing between a retracted position and a connection start position. The first housing and a second housing are connected by rotation of the lever from the connection start position. A detector is movable between a standby position and a detection position with respect to the lever. The lever includes a lock on an end separated from the shaft. The second housing includes a full locking portion to engage the lock when the housings are connected. The detector locks the lock at the standby position and becomes movable to the detection position when the full locking portion engages the lock. The first housing includes a housing-side lock, and the lever includes a lever-side lock that locks the housing-side lock at the retracted position. The lever-side lock is at a position different from the lock of the lever.

Abstract: A control apparatus controls access from a plurality of masters to a memory. The apparatus comprises: an acquisition unit configured to acquire a plurality of access requests from the plurality of masters; a selection unit configured to select a scheme to be used from a plurality of different schemes for determining an access sequence in accordance with a state of a master concerning satisfaction of a performance requirement; and an execution unit configured to execute a plurality of acquired access requests in a sequence according to a selected scheme.

Abstract: Provided is a controller which issues a first write command for writing all data of a burst access operation on a memory and a second write command for writing data of a burst access operation on a memory per byte. The controller includes a holding unit configured to hold a plurality of commands requesting access to the memory and a selection unit configured to select, in a case where the holding unit holds the second write command and a command that causes a first time penalty longer than a second time penalty needed between the first write command that is issued first and the second write command that is issued next, the second write command prior to the command.

Abstract: A connector assembly includes a female housing (11) having a lever lock (28) projecting therefrom, a male housing (12) having a tubular receptacle (36). The female housing (11) is configured to fit into the receptacle (36). The receptacle (36) has a recess (71) in the form of a cutout into which the lever lock (28) enters. A lever (16) is assembled with the male housing (12) and is configured to connect the housings (11, 12) by being rotated. The lever (16) includes a lever lock receiving portion (75) to be locked by the lever lock (28) that has entered the recess (71).

Abstract: A connector housing (10) includes a terminal inserting portion (15) into which deflectable locking lances (23) project, and a retainer mounting hole (26) communicating with the terminal inserting portion (15) and open in one surface facing in a direction intersecting an inserting direction of a terminal fitting (70). A retainer (40) is inserted into the retainer mounting hole (26). The retainer (40) includes a deflection restricting portion (44) configured to restrict the deflection of the locking lance (23) by entering a deflection space (58) for the locking lance (23) with the retainer (40) inserted to a proper depth in the retainer mounting hole (26) and supports (43) capable of supporting the terminal fitting (70) by being located to be able to come into contact with the terminal fitting (70).

Abstract: A connector assembly includes a female housing (11) and a male housing (12) connectable to each other. A lever (16) is supported rotatably on shafts (43) of the male housing (12). The male housing (12) includes walls (55) outside side surfaces. The lever (16) includes two plates (74) projecting from a lever operating portion (73) while facing each other and wall engaging portions (93) provided on the respective plates (74). The wall engaging portions (93) are configured to enter entrance spaces (66) inward of the walls (55) with the plates (74) facing the side surfaces of the male housing (12) and the shafts (43) being fit into bearings (81) of the lever (16) and contacting the walls (55) from outside by the plates (74) respectively erroneously facing the side surfaces of the male housing (12) not corresponding thereto.

Abstract: A connector includes an inner receptacle (13), an outer receptacle (12) for covering an outer periphery of the inner receptacle (13), a first terminal fitting (50) arranged to project inside the inner receptacle (13), and second terminal fittings (60) arranged to project outside the inner receptacle (13) and inside the outer receptacle (12). A mating housing (80) is fit into the outer receptacle (12). A tip of the inner receptacle (13) is located forward of tips of the first and second terminal fittings (50, 60).

Abstract: A connector assembly includes a female housing (11) and a male housing (12) connectable to each other. Male terminal fittings (39) have tabs (41) projecting into a receptacle (36) of the male housing (12), and a moving plate (15) to be movably accommodated into the receptacle (36). The moving plate (15) includes a plate body (94) with positioning holes (96) enabling the insertion of the tabs (41) and a peripheral wall (95) connected to a periphery of the plate body (94) and slidable on an inner surface of the receptacle (36). An operating portion (103) for removal is provided on the peripheral wall (95) and is exposed from the receptacle (36).

Abstract: A connector assembly includes a female housing (11) having a lever lock (28) projecting therefrom, a male housing (12) having a tubular receptacle (36). The female housing (11) is configured to fit into the receptacle (36). The receptacle (36) has a recess (71) in the form of a cutout into which the lever lock (28) enters. A lever (16) is assembled with the male housing (12) and is configured to connect the housings (11, 12) by being rotated. The lever (16) includes a lever lock receiving portion (75) to be locked by the lever lock (28) that has entered the recess (71).

Abstract: A connector assembly includes a female housing (11) and a male housing (12) connectable to each other. A lever (16) is supported rotatably on shafts (43) of the male housing (12). The male housing (12) includes walls (55) outside side surfaces. The lever (16) includes two plates (74) projecting from a lever operating portion (73) while facing each other and wall engaging portions (93) provided on the respective plates (74). The wall engaging portions (93) are configured to enter entrance spaces (66) inward of the walls (55) with the plates (74) facing the side surfaces of the male housing (12) and the shafts (43) being fit into bearings (81) of the lever (16) and contacting the walls (55) from outside by the plates (74) respectively erroneously facing the side surfaces of the male housing (12) not corresponding thereto.