Freescale Semiconductor NXP CodeWarrior USB TAP, Руководство пользователя

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41 USB TAP Users Guide
E
ARM® JTAG Connector
Information
The CodeWarrior USB TAP for ARM ® JTAG has a 20-pin connector. The CodeWarrior
USB TAP for ARM
®
JTAG automatically supports target signal levels from 1.8V to
3.3V.
Figure E.1 shows the pin assignments of the CodeWarrior USB TAP for ARM
®
JTAG.
Table E.1 lists ARM ® JTAG signal names, direction, pin numbers, descriptions, and
drive capabilities for the CodeWarrior USB TAP for ARM
®
JTAG.
Table E.2 provides a general description of each ARM ® JTAG signal and the
CodeWarrior USB TAP for ARM
®
JTAG operational requirements.
NOTE All ARM ® JTAG signals must meet accepted standards for ARM ® JTAG
signal design. To ensure proper and stable operation between the CodeWarrior
USB TAP for ARM
® JTAG and the target, the ARM ® JTAG signals must
meet the requirements listed in Table E.2 .
U SB_TA P.book Page 41 Thursday, N ovem ber 10, 2005 2:27 PM