Ricoh R5C841 - Manual (Page 3)

R5C841 PCI-CardBus/IEEE 1394/SD Card/Memory Stick/xD/ExpressCard Data Sheet
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VERVIEW
The R5C841 is a single chip solution offering five PCI functions (a PCI bus bridge to a PC Card, an IEEE
1394, an SD Card, a Memory Stick and an xD Picture Card) with an ExpressCard (USB Interface Type)
switch.
PC98/99/2001 compliant
PC2001 Design Guide compliant (Subsystem ID, Subsystem Vendor ID)
Compliant with ACPI and PCI Bus Power Management 1.1
Support Global Reset
Low Power consumption
Low operating power consumption due to the improvement of Power Management
Software Suspend mode compliant with ACPI
Hardware Suspend
CLKRUN#, CCLKRUN# support
The core logic - powered at 1.8V, the others – powered at 3.3V
PCI-CardBus/1394 Bridge/SD Card/Memory Stick/xD Picture Card/ExpressCard interface
1-slot PC Card
2 ports of IEEE1394
MDIOxx pins shared by SD Card, Memory Stick and xD Picture Card
− Providing Ricoh’s proprietary driver for Memory Stick and xD Picture Card
ExpressCard (USB Interface Type) supported by the PC Card passive adapter
PCI Bus Interface
Compliant with PCI Local Bus Specification2.3
The maximum frequency 33MHz
PCI Master/Target protocol support
PCI configuration space for each function
3.3V Interface (5V tolerant)
CardBus PC card Bridge
Compliant with PC Card Standard Release 8.1 Specification
The maximum frequency 33MHz
Support CardBus Master/Target protocol
Support Memory Write Posting/ Read Prefetching
Transfer transactions
− All memory read/write transaction (bi-direction)
− I/O read/write transaction (bi-direction)
− Configuration read/write transaction (PCI → Card)
− 2 programmable memory windows
− 2 programmable I/O windows
PC Card-16 Bridge
Compliant with PC Card Standard Release 8.1 16-bit Specification
5 programmable memory windows
2 programmable I/O windows
Compliant with i82365SL compatible register set/ExCA
Support Legacy 16-bit mode (3E0, 3E2 I/O ports)