Adaption for ColdFire Debugger and Trace

Debugger and Trace Connectors

BDM Connectors for ColdFire V2, V3 and V4

• The signals needed for debugging and tracing are combined in a single connector.
• Some of the pins in the schematics below have multiple alternate signal names. Please check the "BDM Connector Pinout" chapter of the reference manual for the exact CPU you are using for further details or contact our support team.

BDM Connector 26 pin ColdFire V2 or V3 CPUs Debugger and Trace

Signal	Pin		Pin	Signal
N/C	1		2	BKPT-
GND	3		4	DSCLK
GND	5		6	N/C
RESET-	7		8	DSI
VDD_IO 1.8...5.0 V	9		10	DSO
GND	11		12	PST3
PST2	13		14	PST1
PST0	15		16	DDATA3
DDATA2	17		18	DDATA1
DDATA0	19		20	GND
N/C	21		22	N/C
GND	23		24	PSTCLK/CLKOUT/CPUCLK
VDD_CPU 1.8-5.0V	25		26	TEA-/TA-/DTACK-/BERR-

• If the tracing capability is not needed, DDATA3..0 can be connected or pulled down to GND.

BDM Connector 26 pin ColdFire V2 or V3 CPUs with ALLPST only Debugger

Signal	Pin		Pin	Signal
N/C	1		2	BKPT-
GND	3		4	DSCLK
GND	5		6	N/C
RESET-	7		8	DSI
VDD_IO 1.8-5.0V	9		10	DSO
GND	11		12	ALLPST
ALLPST or pull-up resistor	13		14	ALLPST or pull-up resistor
ALLPST or pull-up resistor	15		16	GND or pull-down resistor
GND or pull-down resistor	17		18	GND or pull-down resistor
GND or pull-down resistor	19		20	GND
N/C	21		22	N/C
GND	23		24	PSTCLK/CLKOUT/CPUCLK
VDD_CPU 1.8...5.0 V	25		26	TEA-/TA-/DTACK-/BERR-

• This connector cannot be used for tracing, because the CPU variants with the ALLPST signal miss the necessary PST3..0 and DDATA3..0 signals.

BDM Connector 26 pin ColdFire V4 CPUs Debugger and Trace

Signal	Pin		Pin	Signal
N/C	1		2	BKPT-
GND	3		4	DSCLK
GND	5		6	N/C
RESET-	7		8	DSI
VDD_IO 1.8...5.0 V	9		10	DSO
GND	11		12	PSTDDATA7
PSTDDATA6	13		14	PSTDDATA5
PSTDDATA4	15		16	PSTDDATA3
PSTDDATA2	17		18	PSTDDATA1
PSTDDATA0	19		20	GND
N/C	21		22	N/C
GND	23		24	PSTCLK
VDD_CPU 1.8-5.0V	25		26	TA-

Target Connector for ColdFire

Dimension

Connector Type

• This is a standard 26 pin double row (two rows of 13 pins) connector (pin to pin spacing: 2.54mm/0.100").
• If terminal strip without shroud is used, the spacing marked with "A" must be a minimum of 38.2mm/1.5".