MC68HC908QY2 MOTOROLA [Motorola, Inc], MC68HC908QY2 Datasheet - Page 113

• Manufacturer Part Number: MC68HC908QY2
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

Data Sheet — MC68HC908QY4
9.1 Contents
9.2 Introduction
MOTOROLA
MC68HC908QY4•MC68HC908QT4•MC68HC908QY2•MC68HC908QT2•MC68HC908QY1•MC68HC908QT1
9.2
9.3
9.4
9.4.1
9.4.2
9.4.3
9.4.4
9.4.5
9.4.6
9.5
This section describes the monitor read-only memory (MON) and the
monitor mode entry methods. The monitor ROM allows complete testing
of the microcontroller unit (MCU) through a single-wire interface with a
host computer. Monitor mode entry can be achieved without use of the
higher test voltage, V
$FFFF are blank, thus reducing the hardware requirements for in-circuit
programming.
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Security. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .127
Forced Monitor Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
V
Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Break Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Baud Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .121
Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .122
TST
Monitor Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Monitor ROM (MON)
TST
Section 9. Monitor ROM (MON)
, as long as vector addresses $FFFE and
113