nsc800 National Semiconductor Corporation, nsc800 Datasheet - Page 10

• Manufacturer Part Number: nsc800
• Description: Nsc800tm High-performance Low-power Cmos Microprocessor
• Manufacturer: National Semiconductor Corporation

8 0 Functional Description
This section reviews the CPU architecture shown below fo-
cusing on the functional aspects from a hardware perspec-
tive including timing details
Note Applicable pinout for 40-pin
dual-in-line package within parentheses
FIGURE 1 NSC800 CPU Functional Block Diagram
10
As illustrated in Figure 1 the NSC800 is an 8-bit parallel
device The major functional blocks are the ALU register
array interrupt control timing and control logic These areas
are connected via the 8-bit internal data bus Detailed de-
scriptions of these blocks ae provided in the following sec-
tions
TL C 5171 – 9