mc68hc05pl4b Freescale Semiconductor, Inc, mc68hc05pl4b Datasheet - Page 3

• Manufacturer Part Number: mc68hc05pl4b
• Description: Low-cost Single-chip Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Section
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.4.5
1.4.6
1.4.7
2.1
2.2
2.3
2.4
2.5
3.1
3.2
3.3
3.4
3.5
3.6
3.6.1
3.6.2
3.6.3
3.6.4
3.6.5
4.1
4.2
4.3
4.4
4.4.1
MC68HC05PL4
REV 2.0
FEATURES ...................................................................................................... 1-1
MCU BLOCK DIAGRAM .................................................................................. 1-2
PIN ASSIGNMENTS ........................................................................................ 1-3
PIN DESCRIPTIONS ....................................................................................... 1-4
MEMORY MAP ................................................................................................ 2-1
I/O REGISTERS .............................................................................................. 2-2
RAM ................................................................................................................. 2-2
ROM................................................................................................................. 2-2
COP WATCHDOG REGISTER (COPR).......................................................... 2-2
REGISTERS .................................................................................................... 3-1
ACCUMULATOR (A) ....................................................................................... 3-2
INDEX REGISTER (X) ..................................................................................... 3-2
STACK POINTER (SP) .................................................................................... 3-2
PROGRAM COUNTER (PC) ........................................................................... 3-2
CONDITION CODE REGISTER (CCR) ........................................................... 3-3
INTERRUPT VECTORS .................................................................................. 4-1
INTERRUPT PROCESSING ........................................................................... 4-2
SOFTWARE INTERRUPT ............................................................................... 4-4
EXTERNAL INTERRUPT ................................................................................ 4-4
VDD, VSS .................................................................................................... 1-4
OSC1, OSC2 ............................................................................................... 1-4
RESET......................................................................................................... 1-4
LED/IRQ ...................................................................................................... 1-4
PA0, PA1/DTMF, PA2/TCAP, PA3/TCMP, PA4-PA6 .................................. 1-5
PB0/KBI0-PB3/KBI3, PB4-PB7.................................................................... 1-5
PC0-PC7...................................................................................................... 1-6
Half Carry Bit (H-Bit) .................................................................................... 3-3
Interrupt Mask (I-Bit) .................................................................................... 3-3
Negative Bit (N-Bit) ...................................................................................... 3-3
Zero Bit (Z-Bit) ............................................................................................. 3-3
Carry/Borrow Bit (C-Bit) ............................................................................... 3-4
LED/IRQ Pin ................................................................................................ 4-4
Freescale Semiconductor, Inc.
For More Information On This Product,
CENTRAL PROCESSING UNIT
GENERAL DESCRIPTION
TABLE OF CONTENTS
Go to: www.freescale.com
INTERRUPTS
SECTION 1
SECTION 2
SECTION 3
SECTION 4
April 30, 1998
MEMORY
GENERAL RELEASE SPECIFICATION
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