mc68hc908jb16 Freescale Semiconductor, Inc, mc68hc908jb16 Datasheet - Page 123

• Manufacturer Part Number: mc68hc908jb16
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

9.1 Contents
9.2 Introduction
MC68HC908JB16
Freescale Semiconductor
Technical Data — MC68HC908JB16
—
Rev. 1.1
9.2
9.3
9.4
9.4.1
9.4.2
9.4.3
9.4.4
9.4.5
9.5
9.5.1
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 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 voltage,
V
reducing the hardware requirements for in-circuit programming.
TST
, as long as vector addresses $FFFE and $FFFF are blank, thus
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124
Security. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Entering Monitor Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Break Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Baud Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .129
Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Extended Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Monitor ROM (MON)
Section 9. Monitor ROM (MON)
Technical Data
123