Chapter 1 Introduction
13
1-3 Chipset Diagram
• The KT333 and VT8233A chipset is a high performance, cost-effective
and energy efficient system controller for the implementation of AGP /
PCI desktop personal computer system based on 64-bit Socket-A
(AMD Athlon) processors.
Diagram of Apollo KT333 System Block Using the VT8233A V-Link
South Bridge
DDR Vlink
Host North
552 BGA
VT8233A
Vlink
Client South
352 BGA
3D
Graphics
Controller
Athlon
Host CPU
SDR/VCM
& DDR
SDRAM
Clock
Buffer
Clock
Generator
SDR/DDR Memory Bus
AGP Bus
SYSCLK, SYSCLK#
INTR, NMI, SM#, STPCLK#,
IGNNE#, FERR#, A20M#,
PWROK, INIT#, RESET#
GCLK
PCLK
PCKRUN#
ATA33/66/100/133
4x USB
LPC
SMBus
Power Plan & Peripheral Control
GPIO and ACPI Events
PCI Bus
CKE#
MCLK
HCLK
PCLK
CPUSTP#
PCISTP#
SUSCLK,
SUSST1#
GCKRUN#
Address
Out
CFWDRST
CONNECT
PROCRDY
In
Data
KT333