PCMCIA signals

• Address/Data

  • 26 bits of address space, 16 bits parallel data (can also just use 8 bits)

• Cycle Control

  • read (OE/), write (WE/), and wait (WAIT/)

• Card Control

  • reset (RESET), access card information structure (REG/),low and high byte selects (CE1/, CE2/)

• Card Detect

  • shortest pins at either end of connector to determine propercard insertion (CD1/, CD2/)

• Status

  • card battery voltage detect and reset (BVD1, BVD2), write protected (WP), card ready (RDY or BSY/, used to slow down data transaction)

• Power

  • power to card (Vcc, GND)
  • programming voltage for flash memory (Vpp1, Vpp2)
  • card voltage requirements (VS1, VS2)

Previous slide

Next slide

Back to first slide

View graphic version