sc9s08mz16 Freescale Semiconductor, Inc, sc9s08mz16 Datasheet - Page 229
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sc9s08mz16
Manufacturer Part Number
sc9s08mz16
Description
Hcs08 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.SC9S08MZ16.pdf
(270 pages)
- Current page: 229 of 270
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12.2.3
BDC commands are sent serially from a host computer to the BKGD pin of the target HCS08 MCU. All
commands and data are sent MSB-first using a custom BDC communications protocol. Active background
mode commands require that the target MCU is currently in the active background mode while
non-intrusive commands may be issued at any time whether the target MCU is in active background mode
or running a user application program.
Table 12-1
meaning of each command.
Coding Structure Nomenclature
This nomenclature is used in
Freescale Semiconductor
SPEED-UP PULSE
PERCEIVED START
TO BKGD PIN
TARGET MCU
(TARGET MCU)
HOST DRIVE
DRIVE AND
BDC CLOCK
OF BIT TIME
BKGD PIN
shows all HCS08 BDC commands, a shorthand description of their coding structure, and the
BDC Commands
Figure 12-4. BDM Target-to-Host Serial Bit Timing (Logic 0)
Table 12-1
SC9S08MZ16 MCU Data Sheet, Rev. 1
10 CYCLES
HOST SAMPLES BKGD PIN
to describe the coding structure of the BDC commands.
10 CYCLES
HIGH-IMPEDANCE
SPEEDUP
PULSE
EARLIEST START
OF NEXT BIT
229
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