Design Guide
21
Introduction
1.3.2
Intel
®
E7500 Chipset
The E7500 chipset consists of three major components: the Intel
®
E7500 Memory Controller Hub
(referred to throughout this document as the MCH), the Intel
®
82801CA I/O Controller Hub 3-S
(hereafter referred to as ICH3-S), and the Intel
®
82870P2
PCI/
PCI-X 64-bit Hub 2 (abbreviated to
P64H2). The chipset components communicate via hub interfaces (HIs). The MCH provides four
hub interface connections: one for the ICH3-S and three for high-speed I/O using 82870P2 P64H2
components. The hub interfaces are point-to-point and therefore only support two agents (the MCH
plus one I/O device). Therefore, the system supports a total of three P64H2s.
1.3.2.1
Intel
®
E7500 Memory Controller Hub (MCH)
The MCH is a 1005-ball FC-BGA package and contains the following functionality:
•
System Bus Features:
— Supports dual processors at 100 MHz (x4 transfers).
— System bus bandwidth of 3.2 GB/s (400 MHz).
— Supports 36-bit system bus addressing model.
— 12 deep in-order queue, 2 deep defer queue.
•
Memory Bus Features:
— 144-bit wide, DDR-200 memory interface with memory bandwidth of 3.2 GB/s.
— Supports x72, ECC, registered DDR-200 DIMMs using 64-Mb, 128-Mb, 256-Mb and
512-Mb DRAMs.
— Supports a maximum of 16 GB of memory.
— Supports Single 4-bit Error Correct, Double 4-bit Error Detect (S4EC/D4ED) Chipkill
technology ECC (x4 Chipkill technology).
— Supports up to 32 simultaneous open pages.
•
I/O Features:
— Provides HI1.5 connection for ICH3-S (Hub Interface A):
- 266 MB/s point-to-point connection for ICH3-S with parity protection.
- 8-bit wide, 66 MHz base clock, 4X data transfer.
- Parallel termination mode for longer trace lengths.
- 64-bit inbound addressing, 32-bit outbound addressing.
— Provides 3 HI2.0 Connections for P64H2s (Hub Interfaces B, C and D):
- 1.066 GB/s point-to-point connection for I/O bridges with ECC protection.
- 16-bit wide, 66 MHz base clock, 8X data transfer.
- Parallel termination mode for longer trace lengths.
- 64-bit inbound addressing, 32-bit outbound addressing.
•
Power Management Features:
— Supports C0, C1, C2, S0, S1, S4, and S5 power states.
(Does not support C3, C4, S2,
and S3).
Содержание Xeon
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