68HC05P9A datasheet(3/90 Pages) FREESCALE

3 / 90 page

TABLE OF CONTENTS

Section

Title

Page

GENERAL RELEASE SPECIFICATION

Rev. 2.0

iii

SECTION 1

GENERAL DESCRIPTION

1.1

Features .......................................................................................................... 1-1

1.2

Mask Options .................................................................................................. 1-2

1.3

MCU Structure ................................................................................................ 1-3

1.4

Pin Assignments ............................................................................................. 1-4

1.5

Signal Description ........................................................................................... 1-4

1.5.1

VDD and VSS ............................................................................................... 1-4

1.5.2

IRQ ............................................................................................................. 1-4

1.5.3

OSC1 and OSC2 ........................................................................................ 1-5

1.5.4

RESET ........................................................................................................ 1-5

1.5.5

TCMP .......................................................................................................... 1-5

1.5.6

PA0 through PA7 ........................................................................................ 1-5

1.5.7

SDO/PB5, SDI/PB6, and SCK/PB7 ............................................................ 1-6

1.5.8

PC0 through PC7 ........................................................................................ 1-6

1.5.9

PD5 and TCAP/PD7 ................................................................................... 1-6

1.6

Input/Output Programming .............................................................................. 1-6

SECTION 2

MEMORY

2.1

ROM ................................................................................................................ 2-3

2.2

ROM Security Feature .................................................................................... 2-3

2.3

RAM ................................................................................................................ 2-3

SECTION 3

CENTRAL PROCESSING UNIT

3.1

Accumulator (A) .............................................................................................. 3-1

3.2

Index Register (X) ........................................................................................... 3-1

3.3

Condition Code Register (CCR) ...................................................................... 3-1

3.3.1

H — Half Carry ........................................................................................... 3-1

3.3.2

I — Interrupt ................................................................................................ 3-2

3.3.3

N — Negative ............................................................................................. 3-2

3.3.4

Z — Zero ..................................................................................................... 3-2

3.3.5

C — Carry/Borrow ...................................................................................... 3-2

3.4

Stack Pointer (SP) ........................................................................................... 3-2

3.5

Program Counter (PC) .................................................................................... 3-3

Freescale Semiconductor, Inc.

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