MC68HC05PV8 Datasheet, PDF (77/196 Pages) Freescale Semiconductor, Inc – Techinal Data - rev 1.9

Freescale Semiconductor, Inc.
Technical Data — MC68HC(8)05PV8/A
5.1 Contents
Section 5. Resets
5.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
5.3 Reset status register (RSR) . . . . . . . . . . . . . . . . . . . . . . . . . . .78
5.4 External Reset (RESET). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
5.5 Internal Resets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
5.6 Power-On Reset (POR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
5.7 Computer Operating Properly Reset (COPR). . . . . . . . . . . . . . 82
5.8 Illegal Address Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
5.9 Disabled STOP Instruction Reset . . . . . . . . . . . . . . . . . . . . . . .84
5.10 High Temperature Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
5.11 High Voltage Reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
5.12 Low Voltage Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85
5.13 Operation in STOP and WAIT Mode . . . . . . . . . . . . . . . . . . . .85
5.14 Clock Monitor Reset (CMR) . . . . . . . . . . . . . . . . . . . . . . . . . . .85
5.14.1 Clock Monitor in STOP mode . . . . . . . . . . . . . . . . . . . . . . . 86
5.2 Introduction
The MCU can be reset from nine sources: one external input and eight
internal restart conditions. The RESET pin is an input with a Schmitt
trigger. All the internal peripheral modules are reset by the internal reset
signal (RST). Refer to Figure 5-2 for reset timing details.
MC68HC(8)05PV8/A — Rev. 1.9
Resets
For More Information On This Product,
Go to: www.freescale.com
Technical Data