Data processing station and an operating method
First Claim
1. A data processing station for processing and transmitting data between first and second devices, and station comprising:
- a first interface unit including input-output means to receive data from and to transmit data to the first device, and further including a first processor programmed to control operation of the first interface unit;
a second interface unit including input-output means to receive data from and to transmit data to the second device, and further including a first processor programmed to control operation of the second interface unit; and
means connecting the first interface unit to the second interface unit to transmit data and signals between the first and second interface units;
wherein the first interface unit has a multitude of states, including i) a remote terminal state, in which the first interface unit receives data from and transmits data to the first device, and ii) a bus controller state, in which the first interface unit transmits data and receives data from the second device;
the first processor being adapted to generate interrupt signals and to transmit the interrupt signals to the second processor in response to predetermined events; and
the second processor being adapted to generate control signals and to transmit the control signals to the first interface unit to change the state thereof at predetermined times, the control signals including a first signal to change the state of the first interface unit to the remote terminal state, and a second signal to change the state of the first interface unit to the bus controller state.
1 Assignment
0 Petitions
Accused Products
Abstract
A data processing station and a method of operating a data processing station for processing and transmitting data between first and second devices. The data processing station comprises first and second interface units. The first interface unit has a multitude of states including a remote terminal state to receive data from and to transmit data to the first device, and a bus controller state to transmit data to the second device. The first interface unit also includes a first processor to generate an interrupt signal and to transmit the interrupt signal to the second interface unit-in response to predetermined events. The second interface unit is provided to receive data from and to transmit data to the second device, and this interface unit includes a second processor adapted to generate control signals and to transmit the control signals to the first interface unit to change the state thereof at predetermined times.
46 Citations
14 Claims
-
1. A data processing station for processing and transmitting data between first and second devices, and station comprising:
-
a first interface unit including input-output means to receive data from and to transmit data to the first device, and further including a first processor programmed to control operation of the first interface unit; a second interface unit including input-output means to receive data from and to transmit data to the second device, and further including a first processor programmed to control operation of the second interface unit; and means connecting the first interface unit to the second interface unit to transmit data and signals between the first and second interface units; wherein the first interface unit has a multitude of states, including i) a remote terminal state, in which the first interface unit receives data from and transmits data to the first device, and ii) a bus controller state, in which the first interface unit transmits data and receives data from the second device; the first processor being adapted to generate interrupt signals and to transmit the interrupt signals to the second processor in response to predetermined events; and the second processor being adapted to generate control signals and to transmit the control signals to the first interface unit to change the state thereof at predetermined times, the control signals including a first signal to change the state of the first interface unit to the remote terminal state, and a second signal to change the state of the first interface unit to the bus controller state. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method of operating a data processing station for processing and transmitting data between first and second devices, the data processing station including a first unit to receive data from and to transmit data to the first device and including a first processor programmed to control operation of the first interface unit, and a second interface unit to receive data from and to transmit data to the second device and including a second processor programmed to control operation of the second interface unit, the method comprising:
-
placing the first interface unit into a remote terminal state in which the first interface unit receives data from and transmits data to the first device; placing the first interface unit into a bus controller state in which the first interface unit transmits data to and receives data from the second device; using the first processor to generate an interrupt signal, and transmitting the interrupt signal from the first processor to the second processor in response to predetermined events to advise the second processor of said predetermined events; and using the second processor to generate control signals, and transmitting the control signals to the first processor to change the state thereof at predetermined times, and including i) transmitting a command signal to the first processor to place the first interface unit in the remote terminal state to transmit a message to the first device, and ii) transmitting a command signal to the first processor to place the first interface unit into a bus controller state to transmit a message to the second device. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
Specification