
MC68HC(7)05CJ4
MOTOROLA
Rev. 2.1
iii
TABLE OF CONTENTS
Paragraph
Title
Page
SECTION 1
GENERAL DESCRIPTION
1.1
Introduction ................................................................................................... 1-1
1.2
Features ........................................................................................................ 1-1
1.3
Mask Options ................................................................................................ 1-4
1.4
Signal Description ......................................................................................... 1-4
1.4.1
VDD and VSS ........................................................................................... 1-4
1.4.2
RESET .................................................................................................... 1-4
1.4.3
Maskable Interrupt Request (IRQ) .......................................................... 1-5
1.4.4
OSC1 and OSC2 .................................................................................... 1-5
1.4.5
TCAP and TCMP .................................................................................... 1-5
1.4.6
PA0 through PA7 .................................................................................... 1-5
1.4.7
PB0 through PB7 .................................................................................... 1-6
1.4.8
PC0 through PC7 ................................................................................... 1-6
1.4.9
PD0 through PD7 ................................................................................... 1-6
SECTION 2
MEMORY
2.1
Introduction ................................................................................................... 2-1
2.2
Summary of Internal Registers and I/O Map ................................................. 2-2
2.3
RAM .............................................................................................................. 2-5
2.4
Self-Check ROM (MC68HC05CJ4) .............................................................. 2-5
2.5
Boot ROM (MC68HC705CJ4) ....................................................................... 2-5
2.6
Mask ROM (MC68HC05CJ4) ....................................................................... 2-5
2.7
EPROM/OTP (MC68HC705CJ4) .................................................................. 2-5
SECTION 3
CPU CORE
3.1
Introduction ................................................................................................... 3-1
3.2
Accumulator (A) ............................................................................................ 3-1
3.3
Index Register (X) ......................................................................................... 3-1
3.4
Program Counter (PC) .................................................................................. 3-2
3.4.1
Stack Pointer (SP) .................................................................................. 3-2
3.4.2
Condition Code Register (CCR) ............................................................. 3-3