Motorola M6800 User Manual
Page 2
MPU-2
Microprocessing Unit (MC6800)
The nucleus of the M6800 Microcomputer Family is the microprocessing
unit (MPU). The MPU is enclosed in a 40 pin package as shown below:
Features included in the MPU are:
1.
Two accumulators (ACCA and ACCB)
2.
One index register (X)
3.
One program counter register (PC)
4.
One stack pointer register (SP)