68HC705SB7 datasheet(3/170 Pages) FREESCALE

3 / 170 page

August 27, 1998

GENERAL RELEASE SPECIFICATION

MC68HC05SB7

MOTOROLA

REV 2.1

TABLE OF CONTENTS

Section

Page

SECTION 1

GENERAL DESCRIPTION

1.1

FEATURES ...................................................................................................... 1-1

1.2

MASK OPTION ................................................................................................ 1-2

1.3

PEPROM FACTORY PREPROGRAMMED OPTIONS ................................... 1-2

1.4

MCU STRUCTURE.......................................................................................... 1-2

1.5

PIN ASSIGNMENTS ........................................................................................ 1-4

1.6

FUNCTIONAL PIN DESCRIPTION.................................................................. 1-4

1.6.1

VDD, VSS .................................................................................................... 1-4

1.6.2

OSC1, OSC2 ............................................................................................... 1-4

1.6.3

IRQ/VPP ...................................................................................................... 1-5

1.6.4

RESET......................................................................................................... 1-6

1.6.5

CSA ............................................................................................................. 1-6

1.6.6

TM................................................................................................................ 1-6

1.6.7

VM ............................................................................................................... 1-6

1.6.8

CAP (ADC) .................................................................................................. 1-6

1.6.9

ESV.............................................................................................................. 1-7

1.6.10

PA0-PA7 / PWM0-PWM3, SCL0-SCL1, SDA0-SDA1 ................................. 1-7

1.6.11

PB1-PB7 / TCAP, CS0-CS1, AN0-AN3 ....................................................... 1-7

1.6.12

PC4-PC7...................................................................................................... 1-7

SECTION 2

MEMORY

2.1

MEMORY MAP ................................................................................................ 2-1

2.2

INPUT/OUTPUT SECTION.............................................................................. 2-2

2.3

INTERRUPT VECTOR MAPPING ................................................................... 2-6

2.4

ROM................................................................................................................. 2-6

2.5

RAM ................................................................................................................. 2-6

SECTION 3

CENTRAL PROCESSING UNIT

3.1

REGISTERS .................................................................................................... 3-1

3.2

ACCUMULATOR (A)........................................................................................ 3-2

3.3

INDEX REGISTER (X) ..................................................................................... 3-2

3.4

STACK POINTER (SP) .................................................................................... 3-2

3.5

PROGRAM COUNTER (PC) ........................................................................... 3-2

3.6

CONDITION CODE REGISTER (CCR) ........................................................... 3-3

3.6.1

Half Carry Bit (H-Bit) .................................................................................... 3-3

3.6.2

Interrupt Mask (I-Bit) .................................................................................... 3-3

3.6.3

Negative Bit (N-Bit) ...................................................................................... 3-3

3.6.4

Zero Bit (Z-Bit) ............................................................................................. 3-3

3.6.5

Carry/Borrow Bit (C-Bit) ............................................................................... 3-4

68HC705SB7 Datasheet(PDF) 3 Page - Freescale Semiconductor, Inc

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