MC9S08QG8 datasheet(67/300 Pages) FREESCALE

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MC9S08QG8 Datasheet(PDF) 67 Page - Freescale Semiconductor, Inc

Part #	MC9S08QG8

Description	8-BIT HCS08 Central Processor Unit

Download	300 Pages

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Manufacturer	FREESCALE [Freescale Semiconductor, Inc]

Direct Link	http://www.freescale.com

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67 / 300 page

Chapter 5 Resets, Interrupts, and General System Control

MC9S08QG8 and MC9S08QG4 Data Sheet, Rev. 1.01

Freescale Semiconductor

5.8.3

System Background Debug Force Reset Register (SBDFR)

This high page register contains a single write-only control bit. A serial background command such as

WRITE_BYTE must be used to write to SBDFR. Attempts to write this register from a user program are

ignored. Reads always return 0x00.

76543210

00000000

BDFR1

1 BDFR is writable only through serial background debug commands, not from user programs.

Reset:

00000000

= Unimplemented or Reserved

Figure 5-4. System Background Debug Force Reset Register (SBDFR)

Table 5-5. SBDFR Register Field Descriptions

Field

Description

BDFR

Background Debug Force Reset — A serial background command such as WRITE_BYTE can be used to allow

an external debug host to force a target system reset. Writing 1 to this bit forces an MCU reset. This bit cannot

be written from a user program. To enter user mode, PTA4/ACMPO/BKGD/MS must be high immediately after

issuing WRITE_BYTE command. To enter BDM, PTA4/ACMPO/BKGD/MS must be low immediately after issuing

WRITE_BYTE command. See Table A-8., “Control Timing,” for more information.

Manufacturer	Part #	Datasheet	Description
Freescale Semiconductor...	MC9S08QG8	49Kb / 8P	Mask Set Errata for Mask 3M77B
Freescale Semiconductor...	MC9S08QG8	5Mb / 314P	HCS08 Microcontrollers
NXP Semiconductors	MC9S08QG8	2Mb / 138P	Addendum for New QFN Package Migration Rev. 0, 07/2014
	MC9S08QG8	958Kb / 42P	Addendum for New QFN Package Migration Rev. 0, 07/2014
	MC9S08QG8	6Mb / 352P	Addendum for New QFN Package Migration Rev. 0, 07/2014

Manufacturer	Part #	Datasheet	Description
Freescale Semiconductor...	MC9S08QE128	829Kb / 52P	8-Bit HCS08 Central Processor Unit
	MC9S08QE8	947Kb / 46P	8-Bit HCS08 Central Processor Unit
	MC9S08LL16	1Mb / 50P	8-Bit HCS08 Central Processor Unit
	MC9S08QE8	1Mb / 46P	8-Bit HCS08 Central Processor Unit
	MC9S08QB8	1Mb / 36P	8-Bit HCS08 Central Processor Unit
	MC9S08SE8	2Mb / 38P	8-Bit HCS08 Central Processor Unit
	MC9S08DZ60	4Mb / 416P	8-Bit HCS08 Central Processor Unit (CPU)
	MC9S08MP16	775Kb / 36P	8-Bit HCS08 Central Processor Unit (CPU)
	MC9S08AW60MFGE	1Mb / 324P	8-Bit HCS08 Central Processor Unit (CPU)
	MC9S08AC32CFGE	2Mb / 350P	8-Bit HCS08 Central Processor Unit (CPU)

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