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PDF MCHC908QT4 Data sheet ( Hoja de datos )
| Número de pieza | MCHC908QT4 | |
| Descripción | Microcontroller | |
| Fabricantes | Freescale Semiconductor | |
| Logotipo |  |
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M68HC08
Microcontrollers
MC68HC908QY4
MC68HC908QT4
MC68HC908QY2
MC68HC908QT2
MC68HC908QY1
MC68HC908QT1
Data Sheet
MC68HC908QY4/D
Rev 2.0
10/2003
MOTOROLA.COM/SEMICONDUCTORS
www.DataSheet4U.com
1 page  
Revision History
Date
August,
2003
October,
2003
Revision History (Continued)
Revision
Level
1.0
2.0
Description
Reformatted to meet latest M68HC08 documentation standards
Figure 1-1. Block Diagram — Diagram redrawn to include keyboard interrupt
module and TCLK pin designator.
Figure 1-2. MCU Pin Assignments — Added TCLK pin designator.
Table 1-2. Pin Functions — Added TCLK pin description.
Table 1-3. Function Priority in Shared Pins — Revised table for clarity and to
add TCLK.
Figure 2-1. Memory Map — Corrected names for the IRQ status and control
register (INTSCR) bits 3–0.
3.7.3 ADC Input Clock Register — Clarified bit description for the ADC clock
prescaler bits.
4.3 Functional Description — Updated periodic wakeup request values.
Figure 6-1. COP Block Diagram — Reworked for clarity
Section 8. External Interrupt (IRQ) — Corrected bit names for MODE, IRQF,
ACK, and IMASK
Section 14. Timer Interface Module (TIM) — Added TCLK function.
15.3 Monitor Module (MON) — Updated with additional data.
Section 16. Electrical Specifications — Updated with additional data.
Figure 2-2. Control, Status, and Data Registers — Deleted unimplemented
areas from $FFB0–$FFBD and $FFC2–$FFCF as they are actually available.
Also corrected $FFBF designation from unimplemented to reserved.
Figure 6-1. COP Block Diagram — Reworked for clarity
6.3.2 STOP Instruction — Added subsection
13.4.2 Active Resets from Internal Sources — Reworked notes for clarity.
Table 13-2. Reset Recovery Timing — Replaced previous table with new
information.
Section 14. Timer Interface Module (TIM) — Updated with additional data.
Figure 15-3. Break I/O Register Summary — Corrected bit designators for the
BRKAR register
15.3 Monitor Module (MON) — Clarified seventh bullet.
Table 17-1. MC Order Numbers — Corrected temperature and package
designators.
Page
Number(s)
N/A
20
21
22
23
26
48
51
59
77–81
131–147
156
169–183
28
59
60
117
118
131
151
156
185
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MC68HC908QY/QT Family — Rev. 2
MOTOROLA
Revision History
Data Sheet
5
5 Page 
Table of Contents
7.1
7.2
7.3
7.3.1
7.3.2
7.3.3
7.3.4
7.3.5
7.4
7.5
7.5.1
7.5.2
7.6
7.7
7.8
Section 7. Central Processor Unit (CPU)
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
CPU Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Accumulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Index Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Stack Pointer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Program Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Condition Code Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Arithmetic/Logic Unit (ALU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Wait Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
CPU During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Instruction Set Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Opcode Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Section 8. External Interrupt (IRQ)
8.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
8.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
8.3 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
8.4 IRQ Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
8.5 IRQ Module During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
8.6 IRQ Status and Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
9.1
9.2
9.3
9.3.1
9.3.2
9.4
9.5
9.6
9.7
9.7.1
9.7.2
Section 9. Keyboard Interrupt Module (KBI)
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Keyboard Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Keyboard Initialization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Keyboard Module During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . 87
Input/Output Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Keyboard Status and Control Register . . . . . . . . . . . . . . . . . . . . . . . 88
Keyboard Interrupt Enable Register . . . . . . . . . . . . . . . . . . . . . . . . . 89
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MC68HC908QY/QT Family — Rev. 2
MOTOROLA
Table of Contents
Data Sheet
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet MCHC908QT4.PDF ] | |
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