MC68HC908JK3EMP MOTOROLA [Motorola, Inc], MC68HC908JK3EMP Datasheet - Page 107

• Manufacturer Part Number: MC68HC908JK3EMP
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

9.1 Contents
9.2 Introduction
MC68H(R)C908JL3E/JK3E/JK1E
MOTOROLA
Technical Data – MC68H(R)C908JL3E/JK3E/JK1E
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 ROM (MON) and the monitor mode
entry methods. The monitor ROM allows complete testing of the MCU
through a single-wire interface with a host computer. This mode is also
used for programming and erasing of FLASH memory in the MCU.
Monitor mode entry can be achieved without use of the higher test
voltage, V
blank, thus reducing the hardware requirements for in-circuit
programming.
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Rev. 2.0
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Security. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Entering Monitor Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Baud Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .114
Echoing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Break Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115
Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
DD
+ V
Monitor ROM (MON)
HI
, as long as vector addresses $FFFE and $FFFF are
Section 9. Monitor ROM (MON)
Technical Data
107