Hardware Reference
In-Depth Information
74LS244 8-bit bus drivers and 74LS245 8-bit bus transceivers link each of
the major support devices with the 'system address bus' and 'system data bus',
respectively. Address decoding logic (with input signals derived from the system
address bus) generates the chip enable lines which activate the respective ROM,
RAM, and I/O chip select lines.
Figure 1.11
Typical motherboard layout for a Socket 7 Pentium-based PC
