Philips LPC2138 dimensions pinMictor JTAG Debug & ETM Trace Connector P2, CPU expansion connectors

38-pin Mictor JTAG Debug & ETM Trace Connector (P2)

Signal	Pin	Pin	Signal
Not used	1	2	Not used
Not used	3	4	Not used
GND	5	6	TRACECLK
Not used	7	8	Not used
CPU_RESET	9	10	Not used
CPU_TDO	11	12	T3V3
GND	13	14	Not used
CTCK	15	16	GND
CPU_TMS	17	18	GND
CPU_TDI	19	20	GND
CPU_TRST	21	22	GND
GND	23	24	P1.19
GND	25	26	P1.18
GND	27	28	P1.17
GND	29	30	P1.16
GND	31	32	P1.20
GND	33	34	P1.23
GND	35	36	P1.22
GND	37	38	P1.21

An external JTAG & ETM debug tool can be connected to a 38-pin Mictor P2 debug connector. Jumper J9 must be set to 2-3 position when using an external debugger.

CPU expansion connectors

Figure 4: Expansion connectors

All CPU signals are available on the expansion connectors, which are standard connectors with a 2.54 mm raster.

© iSYSTEM, December 2005 9/16