TPMC872 V1.0 User Manual Issue 1.1
Page 15 of 19
For detailed register description, please refer to PCI1520 data sheet which is part of the TPMC872-ED
Engineering Documentation.
3.3 PCI Interrupts
The multifunction pin 0 of the PC Card socket controller is used as the PCI interrupt INTA#. The
PCI1520 provides a card status change interrupt which can notify the system of change in the PC
Card battery voltage levels, PC Card insertion / removal detection, Ready/Busy# condition and
functional status change for both sockets. These various interrupt sources of both PC Cards are
individually programmable to INTA# via ExCA “Card Status Change Interrupt Configuration Register”
at ExCA register offset 0x05.
