Keyboard and Mouse Interface The National Semiconductor PC87308 ISASIO chip used to implement certain segments of the P2 and front-panel I/O provides ROM-based keyboard and mouse interface control. The front panel of the MVME2603/2604 board has two 6-pin circular DIN connectors for the keyboard and mouse connections.Accesses to the configuration space for the PIB (PCI/ISA Bridge) controller are performed by way of the CONADD and CONDAT (Configuration Address and Data) registers in the Raven bridge controller ASIC. The registers are located at offsets $CF8 and $CFC, respectively, from the PCI I/O base address.
The PIB controller provides the following functions:
❏ PCI bus arbitration for: – ISA (Industry Standard Architecture) bus DMA – The PHB (PCI Host Bridge) MPU/local bus interface function, implemented by the Raven ASIC – All on-board PCI devices – The PMC (PCI Mezzanine Card) slot
❏ ISA (Industry Standard Architecture) bus arbitration for DMA devices
❏ ISA interrupt mapping for four PCI interrupts
❏ Interrupt controller functionality to support 14 ISA interrupts
❏ Edge/level control for ISA interrupts ❏ Seven independently programmable DMA channels
❏ One 16-bit timer
❏ Three interval counters/timers
Real-Time Clock/NVRAM/Timer Function
The MVME2603/2604 employs an SGS-Thomson surface-mount M48T59/T559 RAM and clock chip to provide 8KB of non-volatile static RAM, a real-time clock, and a watchdog timer function. This chip supplies a clock, oscillator, crystal, power failure detection, memory write protection, 8KB of NVRAM, and a battery in a package consisting of two parts:
❏ A 28-pin 330mil SO device containing the real-time clock, the oscillator, power failure detection circuitry, timer logic, 8KB of static RAM, and gold-plated sockets for a battery
❏ A SNAPHAT® battery housing a crystal along with the battery
Application industry
Our main products are widely used in metallurgy, oil and gas, glass manufacturing, aluminum, petrochemical, coal mine, paper making and printing, textile printing and dyeing, machinery, electronic manufacturing, automobile manufacturing, tobacco, plastic machinery, electricity, water conservancy, water treatment/environmental protection, municipal engineering, boiler heating, energy, power transmission and distribution, etc.
Superior products
We mainly make spare parts for DCS, PLC, robot control system and large servo system.
Main products: various modules/cards, controllers, touch screens, servo drives.
Advantages: professional off production accessories,
Fast delivery, accurate delivery time,
Main brands include ABB, GE/FANC, FOXBORO, TRICONEX, BENTLY NEVADA, A-B, EMERSON, OVATION, MOTOROLA, XYVOM, HONEYWELL, REXROTH, KUKA, NI, DEIF, Reliance Electric, Yokogawa, WOODWARD, SCHNEIDER, MOOG, PROSOFT and other brands