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SE7221BK1-E Technical Product Specification
Revision 1.3
12
One slots capable of supporting full length legacy PCI add-in cards operating at 33 MHz
4.1.3.2 PCI Express* X4 Subsystem
The ICH6R supports one x4-lane PCI Express* interface that can also be configured as a single
x1 or x4-lane port. The PCI Express* interface allows direct connection with the PXH/PXHD or
PCI-E devices. (Fully compliant to the PCI Express* Base Specification, Rev 1.0a)
4.1.3.3 PCI Bus Master IDE Interface
The ICH6R acts as a PCI-based Ultra ATA 100/66/33 IDE controller that supports programmed
I/O transfers and bus master IDE transfers. The ICH6R supports one IDE channel, supporting
two drives each (drives 0 and 1). The baseboard provides a 40-pin (2x20) IDE connector to
access the IDE functionality.
The IDE interface supports Ultra ATA 100/66/33 Synchronous DMA Mode transfers on the 40-
pin connector.
4.1.3.4 USB Interface
The ICH6R contains one EHCI USB 2.0 controller and four USB ports. The USB controller
moves data between main memory and up to four USB connectors. All ports function identically
and with the same bandwidth. The Intel® Server Board SE7221BK1-E implements four ports on
the board.
The baseboard provides two external USB ports on the back of the server board. The dual-stack
USB connector is located within the standard ATX I/O panel area. The Universal Serial Bus
Specification, Revision 1.1, defines the external connectors.
The third/fourth USB port is optional and can be accessed by cabling from an internal 9-pin
connector located on the baseboard to an external USB port located either in front or the rear of
a given chassis.
4.1.3.5 SATA interface
The ICH6R contains four SATA ports. The data transfer rates up to 150Mbyte/s.
4.1.3.6 Compatibility Interrupt Controller
The ICH6R provides the functionality of two cascaded 82C59 with 15 interrupts handling.
Support processor system bus interrupt.
4.1.3.7 APIC
The ICH6R integrates an I/O APIC capability with 24 interrupts.
4.1.3.8 Power Management
One of the embedded functions of the ICH6R is a power management controller. This is used to
implement ACPI-compliant power management features. The baseboard does support sleep
states S0, S1, S4, and S5.