MC68HC705MC4 Datasheet, PDF (3/99 Pages) Motorola, Inc – Microcontrollers

MC68HC705MC4 Specification Rev. 1.5
SECTION 4 INTERRUPTS ................................................................ 19
4.1
4.2
4.3
4.3.1
4.3.1.1
4.3.1.2
4.3.1.3
4.3.1.4
4.3.1.5
4.3.2
4.3.2.1
4.3.2.2
4.3.2.3
4.3.3
4.3.4
RESET INTERRUPT SEQUENCE .......................................... 21
SOFTWARE INTERRUPT (SWI) ............................................. 22
HARDWARE INTERRUPTS .................................................... 22
EXTERNAL INTERRUPT (IRQ) ......................................... 22
IRQM - IRQ Enable Mask.............................................. 23
IRQS - IRQ Sensitivity................................................... 23
EDGE - IRQ Active Edge Select ................................... 23
REQ - IRQ Interrupt Request ........................................ 23
ACK - IRQ Interrupt Request Acknowledge .................. 23
TIMER INTERRUPTS......................................................... 24
INPUT CAPTURE INTERRUPTS ................................. 24
OUTPUT COMPARE INTERRUPT............................... 25
TIMER OVERFLOW INTERRUPT ................................ 25
SCI INTERRUPT ................................................................ 25
CORE TIMER (CTIMER) INTERRUPT .............................. 25
SECTION 5
5.1
5.2
5.3
5.4
5.5
MEMORY ....................................................................... 27
USER MODE MEMORY MAP ................................................. 27
BOOTSTRAP/SELF-CHECK MODE MEMORY MAP ............. 28
I/O AND CONTROL REGISTERS ........................................... 28
RAM ......................................................................................... 32
ROM/EPROM........................................................................... 32
SECTION 6 INPUT/OUTPUT PORTS ............................................... 33
6.1
6.1.1
6.2
6.3
6.4
6.5
PORT A.................................................................................... 33
MCU LINE INTERFACE RECOMMENDATIONS............... 33
PORT B.................................................................................... 34
PORT C.................................................................................... 35
PORT D.................................................................................... 36
I/O PORT PROGRAMMING .................................................... 36
SECTION 7 ANALOG SUBSYSTEM ................................................ 39
7.1
7.1.1
7.1.2
7.1.3
7.2
7.3
7.3.1
7.3.2
7.3.3
7.4
7.4.1
7.4.2
7.4.3
ANALOG SECTION ................................................................. 39
RATIOMETRIC CONVERSION.......................................... 39
V_REFH and V_REFL................................................................... 39
ACCURACY AND PRECISION .......................................... 39
CONVERSION PROCESS ...................................................... 39
DIGITAL SECTION .................................................................. 39
CONVERSION TIMES........................................................ 39
MULTI-CHANNEL OPERATION ........................................ 40
UNUSED A/D INPUTS AS I/O............................................ 40
A/D STATUS AND CONTROL REGISTER (ADSCR) $25 ...... 40
COCO - CONVERSIONS COMPLETE .............................. 40
ADRC - A/D RC OSCILLATOR CONTROL........................ 41
ADON - A/D ON.................................................................. 41
MOTOROLA
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