MC6804J2
Features
.
Section 1 Introduction
3-139 3-139
Section 2
Functional Pin Description
, Memory, CPU, And Registers
2.1 Functional Pin Description
.
. 3-142
VCC and VSS-
I 2.1.2 2.1.3 2.1.4
IRQ. XTAL and EXTAL. TIMER. . .
... 3-142 3-142
. 3-142 . 3-142
RESET.
- . . . ..
3-142
MDS.
3-143
Input/Output Lines (PA4-PA7, PBO-PB7) .
... 3-143
2.2 Memory.
3-143
2.3 Central Processing Unit.
.. .... 3-143
2.4 Registers .
. 3-145
Accumulator (A).
3-145
Indirect Registers (X, Y) ..
....