GT-32011

The GT-32011 is a single chip System Controller designed to complement lDT's R3051 family of 32-bit embedded processors. It has all the features necessary to implement high-performance, high-quality, embedded controllers. The GT-32011 is oriented towards data communications equipment, telecommunications equipment, office automation equipment, industriai and medical instrumentation, and industrial controllers. The GT-32011 can move large amounts of data quickly without the need for processor intervention. It also achieves a significant reduction in system cost by its high level of integration. Additional savings come from the architecture of the IIO controller, which allows for the utilization of low cost peripherai components (disk controller, network controller, while attaining the higher level of performance only associated with costlier components. Some of the architectural characteristics that result in very high performance include: incorporating a tightly coupled interface to a specific RISC processor architecture; minimizing latency to critical resources; partitioning the system in a balanced way to attain efficient use of shared resources; enabling several simultaneous operations in the system. The GT-32011 is ideal for modular design of embedded control systems through a high level of programmability, and by incorporating the control logic for an industry standard interface to peripherals. This gives OEMs the ability to offer several products from the same basic design, as well as the ability to upgrade systems in the field.

The features of GT-32011 can be summarized as (1)single chip system controller for the lDT R3051 family of processors; (2)features facilitate the implementation of high-performance embedded control systems; (3)16Mhz - 33Mhz CPU interface to: RSO41/51/52/71/81; (4)DRAM controller: 1 - 40 MB directly, device depth supported: 256K - 4M, 1 - 3 banks directly, non-interleave; (5)ROM controller: 1 - 20MB address-space support bank size: 1- 8MB; (6)support for standard and burst ROMs, support for interleave or non interleave; (7)direct interface to external agent/coprocessor; (8)I/O bus follows 8/16 lntel 80186 style; (9)I/O controller: two 8-bit and two 16-bit extemal channels DMA and non-DMA access for the 8-bit channels 8-32 packing and 32-8 unpacking logic for DMA access, round robin arbitration, programmable timing for I/O and control signals, big and little endian support, 16-32 packing and 32-16 unpacking for CPU) Exter-; (10)nal Co-processor accesses; (11)PCMCIA support; through 16-bit I/O bus, using simple glue logic; (12)16-bit to 32-bit packing and 32-bit to 16-bit unpacking, big and little endian support, 256MB address space dedicated for 2 PCMCIA slots; (13)parallel port: supports control for reading and writing from a 16-bit; (14)parallel port; (15)centronics interface: Bi-directional centronics, compliant with IEEE1284, supports DMA and CPU controlled transfers, supports the following modes: compatible; nibble; Byte; ECP; EPP; (16)interrupt controller: 6 external level interrupts (through the PIO pins); (17)10 internal interrupts, individual interrupt mask capability, enabling polling or interrupt-driven systems; (18)general purpose I/O: six programmable Input (interrupts) or Output pins; (19)24-bit timer/counter; (20)in-circuit testing capability; (21)packaged in a 160-pin PQFP.

The DC electerical specifications of GT-32011 are (1)VIH input high voltage: 20 to VDD+05V; (2)VIL input low voltage: -05 to 08V; (3)VOH output high voltage: 24V; (4)VOL output low voltage: 04V; (5)llN input leakage current: -10 to 10A(VIN = VDD or GND); (6)IOZ 3-state output leakage current: -10 to 10A(VOUT = VDD or GND); (7)ICC operating current: 200 mA(VDD = 5V Ta=25°C); (8)CINCLK CLK input capacitance: 11 pF; (9)CIN input capacitance: 5pF.