TNT4882 Description
The TNT4882 provides a single-chip IEEE 488.2 Talker/Listener interface to the general-purpose interface bus (GPIB). The TNT4882 bines the circuitry of the NAT4882 IEEE 488.2 application-specific integrated circuit (ASIC), Turbo488 performance-enhancing ASIC, and GPIB transceivers to create a single-chip IEEE 488.2 interface. Because the TNT4882 contains the NAT4882 register set, which in turn has the NEC µPD7210...
TNT4882 Key Features
- Up to 1.5 Mbytes/s using interlocked IEEE 488.1 handshake
- Up to 8 Mbytes/s using HS488™ Two 8-bit 16-deep FIFOs buffer data between GPIB and CPU With exception of Controller, per
- Bus line monitoring
- Preferred implementation of requesting service
- Not sending messages when there are no Listeners Software patible with Turbo488 /NAT4882™ ASICs Reduces software overhea
- Does not lose a data byte if ATN is asserted while transmitting data
- Static interrupts status bits that do not clear when read
- Automatically transmits END or performs RFD holdoff on last byte of DMA transfer
- Interrupts when handshake is plete on last byte of a DMA transfer
- Has 32-bit counter for large, uninterrupted data transfers Programmable timer interrupt for general-purpose timing use p