MC68HC705C Motorola, MC68HC705C Datasheet - Page 67

• Manufacturer Part Number: MC68HC705C
• Description: HCMOS Microcontroller Unit
• Manufacturer: Motorola

6.1 Contents
6.2 Introduction
6.3 Stop Mode
MC68HC705C8A — Rev. 2.0
MOTOROLA
Technical Data — MC68HC705C8A
6.2
6.3
6.3.1
6.3.2
6.3.3
6.3.4
6.4
6.4.1
6.4.2
6.5
This section describes the three low-power modes:
The STOP instruction places the microcontroller unit (MCU) in its lowest
power consumption mode. In stop mode, the internal oscillator is turned
off, halting all internal processing including timer, serial communications
interface (SCI), and master mode serial peripheral interface (SPI)
operation. See
•
•
•
Stop mode
Wait mode
Data-retention mode
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
Wait Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
Data-Retention Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
SCI During Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
SPI During Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
Programmable COP Watchdog in Stop Mode . . . . . . . . . . .69
Non-Programmable COP Watchdog in Stop Mode . . . . . . .71
Programmable COP Watchdog in Wait Mode . . . . . . . . . . .73
Non-Programmable COP Watchdog in Wait Mode . . . . . . .73
Figure
Low-Power Modes
Section 6. Low-Power Modes
6-1.
Technical Data
67