
Introduction
8
September 2005
SCPS110
Function 2 of the PCI8412 controller is a PCI-based Flash Media controller that supports Memory Stick,
Memory Stick-Pro, SmartMedia, xD, SD, and MMC cards. This function controls communication with these
Flash Media cards through a dedicated Flash Media socket. In addition, this function includes DMA
capabilities for improved Flash Media performance.
Function 3 of the PCI8412 controller is a PCI-based SD host controller that supports MMC, SD, and SDIO
cards. This function controls communication with these Flash Media cards through a dedicated Flash Media
socket. In addition, this function is compliant with the SD Host Controller Standard Specification and includes
DMA capabilities, support for high-speed mode, and support for SD suspend/resume.
2.1.9 Multifunctional Terminals
Various implementation-specific functions and general-purpose inputs and outputs are provided through eight
multifunction terminals. These terminals present a system with options in serial and parallel interrupts, PC
Card activity indicator LEDs, flash media LEDs, and other platform-specific signals. PCI-compliant
general-purpose events may be programmed and controlled through the multifunction terminals, and an
ACPI-compliant programming interface is included for the general-purpose inputs and outputs.
2.1.10
PCI Bus Power Management
The PCIxx12 controller is compliant with the latest PCI Bus Power Management Specification, and provides
several low-power modes, which enable the host power system to further reduce power consumption.
2.1.11
Power Switch Interface
The PCIxx12 controller supports both the three-pin serial interface compatible with the Texas Instruments
TPS2228 (default), TPS2226, TPS2224, and TPS2223A power switches and the four-pin parallel interface
compatible with the Texas Instruments TPS2211A and TPS2212 power switches.
The interface mode is selected by strapping the RSVD/VD0/VCCD1 terminal either high (three-pin serial
mode) or low (four-pin parallel mode). Note that when using the four-pin parallel mode the Smart Card and
Flash Media sockets must be powered via discrete power switches. All of the power switches provide power
to the CardBus socket on the PCIxx12 controller. The power to each dedicated flash media socket is controlled
through separate power control pins or it may be configured to source power through BVCC of a dual-socket
PCMCIA power switch. The power to the dedicated Smart Card socket is controlled through a separate power
control pin that can control an external 5-V power switch or it may be configured to source power through BVPP
of a dual-socket PCMCIA power switch. Each of the dedicated power control pins can be connected to an
external power switch.
2.2
Related Documents
Advanced Configuration and Power Interface (ACPI) Specification (Revision 2.0)
1394 Open Host Controller Interface Specification (Release 1.1)
IEEE Standard for a High Performance Serial Bus (IEEE Std 1394-1995)
IEEE Standard for a High Performance Serial Bus—Amendment 1 (IEEE Std 1394a-2000)
PC Card Standard (Release 8.1)
PCI Bus Power Management Interface Specification (Revision 1.1)
Serial Bus Protocol 2 (SBP-2)
Serialized IRQ Support for PCI Systems
PCI Mobile Design Guide
PCI Bus Power Management Interface Specification for PCI to CardBus Bridges