TPMC872 V1.0 User Manual Issue 1.1
Page 19 of 19
4.4 Initialization for CardBus mode
The TPMC872 is initialized for PC Card16 mode per default. If 32 bit CardBus operation is wanted, a
software device driver should perform the following initialization steps:
•
The CardBus Latency Timer Register at offset 0x1B in the PCI Configuration space should be set
to a value of 0x20.
•
A Memory and/or the I/O Base Address Register must be written with a valid 32 bit window start
address.
•
A Memory and/or I/O Limit Register must be written with a valid 32 bit upper window address.
