Vendor: Western Design Center, Inc. Category: System Controller

Versatile Interface Adapter (VIA)

The following information applies to both the Chip and Core versions of this 65xx brand microprocessor family member.

Contact Provider Request Datasheet

Overview

The following information applies to both the Chip and Core versions of this 65xx brand microprocessor family member.

WDC's high volume production proven 65xx brand microprocessor family of manually designed GDSII hard cores are highly optimized cores that are small and low power and therefore an excellent choice for low power System-on-Chip (SoC) ASIC microcontroller designs. These static cores support a wide range of applications from radiation resistant hi-rel applications such as medical implantable life-support devices to ultra high volume consumer devices.

The W65C22S Versatile Interface Adapter (VIA) is a flexible I/O device for use with the 65xx series microprocessor family. The W65C22S includes functions for programmed control of two peripheral ports (Ports A and B). Two program controlled 8-bit bi-directional peripheral I/O ports allow direct interfacing between the microprocessor and selected peripheral units. Each port has input data latching capability. Two programmable Data Direction Registers (A and B) allow selection of data direction (input or output) on an individual line basis. Also provided are two programmable 16-bit Interval Timer/Counters with latches. Timer 1 may be operated in a One-Shot Interrupt Mode with interrupts on each count-to-zero, or in a Free-Run Mode with a continuous series of evenly spaced interrupts. Timer 2 functions as both an interval and pulse counter. Serial Data transfers are provided by a serial to parallel/parallel to serial shift register. Application versatility is further increased by various control registers, including an Interrupt Flag Register, an Interrupt Enable Register and two Function Control Registers. The IRQB output is an open drain.

Key features

  • Advanced CMOS process technology for low power consumption
  • Compatible with NMOS 6522 devices
  • Low power consumption
  • Two 8-bit, bi-directional peripheral I/O Ports
  • Two 16-bit programmable Interval Timer/Counters
  • Serial bi-directional peripheral I/OPort
  • Enhanced "handshake" feature
  • Latched Input/Output Registers on both I/O Ports
  • Programmable Data Direction Registers
  • TTL compatible I/O peripheral lines
  • Single 1.8V to 5V power supply
  • Bus compatible with high-speed W65C02S and W65C816S
  • Register and Chip Selects specified for multiplexed operation

Files

Product Sheet Download

Note: some files may require an NDA depending on provider policy.

Specifications

Identity

Part Number
W65C22S
Vendor
Western Design Center, Inc.

Provider

Western Design Center, Inc.
HQ: USA
WDC was the first company to license microprocessor Intellectual Property (IP) (1981) as well as the first company to supply microprocessor chips as a fabless semiconductor company (1984). We specialize in 65xx brand microprocessor technology. WDC provides the CMOS 65xx Microprocessor family of GDSII Hard Cores and Verilog RTL Soft Cores which have been proven in high volume production of our standard product line. WDC has licensed 60+ companies worldwide on our microprocessors.
Contact Western Design Center, Inc.

Learn more about System Controller IP core

Cortex-M And Classical Series ARM Architecture Comparisons

ARM has introduced many processors. Each set or groups of processors are having different core and different Features. A new entrant or Designer to the ARM can make use of this paper for easy understanding and choose a processor that is well suited for the requirements. This paper gives brief comparison of the Architectures.

DDR2 Signal Integrity

This paper highlights a typical design approach that can be adopted for an embedded PC (X86 based) board memory subsystem using a VIA VX700 system controller DDR2 interface. Boards with this chipset can feature either an Intel Pentium processor or VIA processor on front side bus (FSB).

Extreme partitioning

Small changes in the initial design of a complex embedded system can often have an unpredictable outcome and have a significant impact on the final system performance

Frequently asked questions about system controller IP cores

What is Versatile Interface Adapter (VIA)?

Versatile Interface Adapter (VIA) is a System Controller IP core from Western Design Center, Inc. listed on Semi IP Hub.

How should engineers evaluate this System Controller?

Engineers should review the overview, key features, supported foundries and nodes, maturity, deliverables, and provider information before shortlisting this System Controller IP.

Can this semiconductor IP be compared with similar products?

Yes. Buyers can compare this product with similar semiconductor IP cores or IP families based on category, provider, process options, and structured technical specifications.

×
Semiconductor IP