Lpc Module Block Diagram; Integrated Micro-Controller (Imc); Real Time Clock; Figure 8-3: Block Diagram Of Lpc Module - AMD SP5100 Data Book

AMD SP5100 Databook

8.3.2 LPC Module Block Diagram

8.4

Integrated Micro-Controller (IMC)

Note: Whether the IMC interface is enabled or not, the IMC GPIO pins can be used as general purpose
GPIOs without IMC support. If not used, pins on this interface should be terminated in the manner
described in the SP5100 Schematic Review Checklist.
8.5

Real Time Clock

The Real Time Clock (RTC) is used for updating a computer's time. In addition to that, it also generates
interrupts for periodic events and pre-set alarm. The SP5100's RTC includes a 256-byte CMOS RAM,
which is used to store the configuration of a computer, such as the number and type of floppy drive,
graphics adapter, base memory, checksum value, etc. The RTC supports leap year date adjustment in
hardware.
56
PCI Interface
PCI Decode State
Machine
Configuration
32-bit DMA Buffer
Register Cntrl
Misc Module Master Data Buffer
LDRQ Handler
Protocol State
Machine
LPC Interface

Figure 8-3: Block Diagram of LPC Module

Functional Description
44409 Rev. 1.70 October 10
ISA Interface
internal