參數(shù)資料
型號(hào)： 68HC705PL4
廠商： Motorola, Inc.
英文描述： 8-Bit Microcontroller Units (MCU).(8位微控制器)
中文描述： 8位微控制器單元（MCU）。（8位微控制器）
文件頁(yè)數(shù)： 3/98頁(yè)
文件大?。?/td> 1019K
代理商： 68HC705PL4
April 30, 1998
GENERAL RELEASE SPECIFICATION
MC68HC05PL4
REV 2.0
MOTOROLA
i
TABLE OF CONTENTS
Section
Page
SECTION 1
GENERAL DESCRIPTION
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
FEATURES......................................................................................................1-1
MCU BLOCK DIAGRAM..................................................................................1-2
PIN ASSIGNMENTS........................................................................................1-3
PIN DESCRIPTIONS.......................................................................................1-4
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
SECTION 2
MEMORY
MEMORY MAP................................................................................................2-1
I/O REGISTERS ..............................................................................................2-2
RAM.................................................................................................................2-2
ROM.................................................................................................................2-2
COP WATCHDOG REGISTER (COPR)..........................................................2-2
SECTION 3
CENTRAL PROCESSING UNIT
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
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
SECTION 4
INTERRUPTS
INTERRUPT VECTORS..................................................................................4-1
INTERRUPT PROCESSING ...........................................................................4-2
SOFTWARE INTERRUPT...............................................................................4-4
EXTERNAL INTERRUPT ................................................................................4-4
LED/IRQ Pin................................................................................................4-4
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
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