Freescale Semiconductor NXP CodeWarrior USB TAP User Manual page 28

DPI Connector Information
Table B.1 CodeWarrior USB TAP Emulator for DPI Signal Directions
DPI
Pin
1
2
3
4
5
6
7
8
9
10
1
4.7KOhm pull-up to buffered TGT PWR.
Table B.2 CodeWarrior USB TAP for DPI Signal Recommendations and Requirements
DPI
Pin
1
2
3
28
Signal Signal
Mnemonic Direction
VLSO/FRZ From target
SRST Bi-directional
GND - n/a -
DSCK From USB TAP
connector
GND - n/a -
VFLS1/FRZ From target
HRST Bi-directional
DSDI From USB TAP
connector
VDD From target
DSDO From target
Signal Requirement
Mnemonic
VLSO/FRZ VFLS0/FRZ is not needed for emulation.
SRST Must be wired to the target. During reset, the USB TAP drives
SRST to ground through a 100Ohm resistor.
GND Must be wired to the target. GND is connected directly to the
USB TAP ground inside the USB TAP.
Description
1
30pF load
Open-drain. 100Ohm to ground when
asserted by USB TAP, 35pF load
1
when not asserted
50mA driver
1
35pF load
Open-drain. 100Ohm to ground when
asserted by USB TAP, 35pF load
1
when not asserted
50mA driver
2MOhm pull-down, plus 0.01uF load
30pF load
USB TAP Users Guide