68HC705JB3 View Datasheet(PDF) - Freescale Semiconductor

Part Name

Description

Manufacturer

68HC705JB3

8-bit microcontroller units (MCUs)

Freescale Semiconductor 

Freescale Semiconductor, Inc.

GENERAL RELEASE SPECIFICATION November 5, 1998

Section

TABLE OF CONTENTS

Page

4.5 HARDWARE INTERRUPTS ............................................................................ 4-4

4.5.1 External Interrupt IRQ.................................................................................. 4-4

4.5.2 IRQ Control/Status Register (ICSR) - $0A................................................... 4-5

4.5.3 Port A External Interrupts (PA0-PA3, by mask option) ................................ 4-6

4.5.4 Timer1 Interrupt (TIMER1)........................................................................... 4-7

4.5.5 USB Interrupt (USB) .................................................................................... 4-7

4.5.6 MFT Interrupt (MFT) .................................................................................... 4-7

SECTION 5

RESETS

5.1 POWER-ON RESET ........................................................................................ 5-2

5.2 EXTERNAL RESET ......................................................................................... 5-2

5.3 INTERNAL RESETS ........................................................................................ 5-2

5.3.1 Power-On Reset (POR) ............................................................................... 5-2

5.3.2 USB Reset ................................................................................................... 5-3

5.3.3 Computer Operating Properly (COP) Reset ................................................ 5-3

5.3.4 Low Voltage Reset (LVR) ............................................................................ 5-3

5.3.5 Illegal Address Reset................................................................................... 5-4

SECTION 6

LOW POWER MODES

6.1 STOP MODE.................................................................................................... 6-3

6.2 WAIT MODE .................................................................................................... 6-3

6.3 DATA-RETENTION MODE.............................................................................. 6-3

SECTION 7

INPUT/OUTPUT PORTS

7.1 PORT-A............................................................................................................ 7-1

7.1.1 Port-A Data Register.................................................................................... 7-2

7.1.2 Port-A Data Direction Register .................................................................... 7-2

7.1.3 Port-A Pull-down/up Register ...................................................................... 7-2

7.1.4 PA0-PA3 Interrupts...................................................................................... 7-2

7.1.5 PA0-PA7 Optical Interface........................................................................... 7-3

7.2 PORT-B............................................................................................................ 7-3

7.2.1 Port-B Data Register.................................................................................... 7-3

7.2.2 Port-B Data Direction Register .................................................................... 7-3

7.2.3 Port-B Pull-down/up Register ...................................................................... 7-4

7.2.4 PB1, PB2 Slow Transition Output................................................................ 7-4

7.3 PORT-C ........................................................................................................... 7-5

7.3.1 Port-C Data Register ................................................................................... 7-5

7.3.2 Port-C Data Direction Register .................................................................... 7-5

7.3.3 Port-C Pull-down/up Register ...................................................................... 7-6

MOTOROLA

ii

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MC68HC05JB3

REV 1

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