Hardware Functional Overview 3-9
PCMCIA CONTROLLER AND SOCKETS
The PCMCIA controller is implemented on the system board using Omega’s 82C094 Inter-
face Controller. The 82C094 is compatible with the Intel i882092AA PCI to PCMCIA
controller chip. It supports two independent 68 pins PC card sockets and is register com-
patible with Intel’s 82365SL.
The NEC Versa 2400 Series notebook incorporates PCMCIA double deck slots that sup-
ports insertion of two Type I or II cards at the same time or one Type III card on the upper
slot and one Type I or II card on the bottom slot.
Feature summary of the Omega 82C094:
PC Card 95, PCMCIA 2.1, and JEIDA 4.1 compatible Interface
Power Management Function that includes Individual Socket power control, Hot
insertion/removal, Hardware/Software controlled power down, Modem Ring in
Resume, CS Controlled Power Down, and Power Saving with Windows inactivity
Direct connection to 33MHz PCI bus and to PCMCIA sockets without glue logic
Serial Power Control to support the designs with most PCMCIA power switch IC
Legacy DMA and serial IRQ to directly support advanced PCI Core Logic
Single-Chip PCMCIA host controller
Supports CLOCKRUN# of the PCI Mobile Design Guide for power saving
Intelligent power management for lowest operating power
Programmable power management with individual socket activity counter
Four-level FIFO and programmable PCMCIA interface timing
Five programmable memory windows and two programmable I/O windows per
socket
Intel EXCA register compatible
Register-set compatible to Intel i82092AA (PPEC) and Intel i82365SL
208 Pin PQFP or TQFP
