VADEM VG230
GENERAL DESCRIPTION
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GENERAL DESCRIPTION
The Vadem VG230 is a one-chip PC platform which provides a highly battery-efficient basis for
OEMs to develop cost sensitive, DOS-based personal electronic products. The chip contains all
standard XT peripherals, additional high-value peripherals and an ISA bus. For long battery life,
the VG230 offers extensive and proven power management capability. In addition to a +5V
version, a version is offered which operates at +3V.
The VG230 contains the 8086-compatible 16 MHz NEC V30HL processor. It also embodies a
standard XT architecture combined with hardware and software features facilitating the rapid
design of products with extensive ROM-based software. PC Card mass storage and miniature
peripherals (I/O cards) following the PCMCIA 2.1 (JEIDA 4.1) standard are supported. The
VG230 is packaged in a single 160-pin CMOS chip and handles all PC functions including 16-
bit CPU, XT core logic, LCD controller, keyboard scanner and PC Card controller. All that is
required for a basic system is the VG230, memory, power supply, display and associated
packaging.
PRODUCT OVERVIEW
Single-chip permits glueless implementation of a fully compatible PC-XT.
Standard-design 16-bit, 16 MHz NEC V30HL processor core integrated on-chip.
Complete hardware and firmware support for memory-saving "execute-in-place" ROM
applications.
Field-proven, industry standard power management based on activity monitoring lengthens
battery life.
Scans up to 101 keys without an external keyboard controller.
Integrated CGA LCD controller and 640x400 AT&T standard controller. Supports a wide
variety of panel resolutions from below CGA to 400-line displays.
LCD controller supports hardware "ink plane" for pen-based applications.
Dual PCMCIA 2.1 (JEIDA 4.1) PC Card slot support allowing "hot" insertion/removal (with
external buffers).
Integrated serial port, real-time clock, programmable interrupt controller, DMA controller
and internal timer.
Deactivating keyboard scan enables a second PCMCIA card slot, a bi-directional parallel.
port and a standard XT keyboard interface.
Support for DRAM, SRAM and PSRAM memory.
Supports up to eight 8-bit RAM banks and up to six 16-bit RAM banks.
ICE support simplifies debugging of system designs.
8250 compatible UART.
XT keyboard interface.
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