The Input/Output Controller Hub 2 (82801Ba) - HP Vectra VL800 Technical Reference Manual

3 System Board

The Input/Output Controller Hub 2 (82801BA)

The Input/Output Controller Hub 2 (82801BA)
Address (32)
Control
Data (64)
2 IDE
Connectors
2 USB
Connectors
Keyboard,
Super I/O
Mouse and
NS 87364
Floppy
Parallel and
Serial Ports
58
The ICH2 is encapsulated in a 360-pin Enhanced Ball Grid Array (EBGA)
package and is located on the system board just underneath the AGP
connector. It provides the interface between the PCI bridge (PCI Rev. 2.2
compliant with support for 32-bit 33 MHz PCI operations),
PCI-to-LPC (Low Pin Count) bridge, IDE controller, USB controller,
SMBus controller and Audio Codec '97 controller.
The ICH2 functions and capabilities are discussed in detail later on in this
section. The following figure shows an example of the system block
diagram using the ICH2.
ATA/100 2 Channels
USB
LPC / FWH Link
FirmWare Hub
(FWH)
82802AA
EEPROM
Intel Pentium 4
Processor
I850 Memory
Controller Hub
(MCH)
I/O Controller Hub I/O Controller Hub
(ICH2) 82801BA (ICH) 82801AA
IDE PCI Bridge
Controller
CS Audio
4 x USB Codec
Controller (CS4280)
SM Bus
DMA
Controller
Controller
Hardware
Monitoring
Chip
Serial
System Bus
PCI Bus (32-bit, 33 MHz)
133 MB/s data transfer rate
Slot 1 - 32-bit/33 MHz
Slot 2- 32-bit/33 MHz
Slot 3 - 32-bit/33 MHz
Slot 4 - 32-bit/33 MHz
Slot 5 - 32-bit/33 MHz
Fans