ETM Interface
6-6 Copyright © 2001 ARM Limited. All rights reserved. ARM DDI 0234B
6.4 Clocks and resets
The ARM7TDMI-S (Rev 4) processor uses a single clock, CLK, as both the main
system clock and the JTAG clock. You must connect the processor clock to both CLK
and TCK on the ETM. You can then use TCKEN to control the JTAG interface.
To trace through a warm reset of the ARM7TDMI-S processor, use the TAP reset
(connect nTRST to DBGnTRST) to reset the ETM7 state.
For more information about ETM7 clocks and resets, see the ETM7 Technical Reference
Manual.
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