Controller Functions - Ricoh G133 Service Manual

Controller Functions

6.12 CONTROLLER FUNCTIONS
6.12.1 OVERVIEW
The controller is based on the GW architecture.
CPU: Celeron 866 MHz
GMCH (Graphics and Memory Controller Hub):
This is one of the chip sets known as "Northbridge". It controls AGTL I/F, Memory I/F, HUB
I/F and AGP I/F.
ICH-3 (I/O Controller Hub3):
This is one of the chip sets known as "Southbridge". It controls PCI I/F, USB I/F, Boot ROM
I/F and System Management.
ASIC 1:
This is one of the GW-architecture ASICs:
GW architecture ASIC. It controls these functions: AGP I/F, DDR-SDRAM, RAIP I/F, ATA
Bus and processes image rotation/composition and compression/decompression.
ASIC 2:
IO control ASIC. It controls the network, operation panel, USB port, SD cards.
SDRAM DIMM (2 slots):
SM 6-81 G133