TC11IB Datasheet, PDF (41/108 Pages) Infineon Technologies AG – 32-Bit Single-Chip Microcontroller

TC11IB
PCI
The PCI Interface module of the TC11IB basically is a bus bridge between the on-chip
FPI bus and the external PCI bus of the system. The PCI Interface is fully compliant to
PCI Local Bus Specification Rev. 2.2. Figure 11 shows a global view of the PCI module
with the module specific pin connections.
FAST
FPI
(M /S)
PCI
M odule
P _ A D [3 1 :0 ]
P_C /BE[3:0]
P_PAR
P_SERR
P_PERR
P_STOP
P_DEVSEL
P_TRDY
P_FRAME
P _ IR D Y
P_LOCK
P _ IN T A
P _ IN T B
P_PME
P_REQ
P_GNT
P _ ID S E L
P_CLK33
MCB04949
Figure 11 General Block Diagram of the PCI Interface
The PCI-FPI bridge is able to execute a number of various data transfers between the
FPI bus and the PCI bus. Beside the standard PCI functions (configuration transactions),
there are two main types of transfers which the bridge supports. Firstly, it will forward a
transaction that any PCI initiator directs to the PCI interface of the TC11IB to the on-chip
FPI bus. Secondly the bridge will forward certain transactions that a FPI master initiates
on the FPI bus to the PCI bus. Depending on configuration, these transfers may be a
Data Sheet
37
V2.3, 2003-11