Specifications

 iSYSTEM, February 2003 8/8
BDM Debug Port
The development tool (iC3000 for example) selects the port automatically. BDM port is
configured after HRESET* transition when the DSCK signal is high. Eight clocks after the MPU
samples the DSDI signal to select the mode (high – asynchronous).
NEXUS Debug Port
Pin
Signal
Name Pin
Signal
Name Pin
Signal
Name Pin
Signal
Name Pin
Signal
Name
1 +2.6V 11 RSTI* 21 +2.6V 31 MDO3 41 MDO6
2 +2.6V 12 GND 22 GND 32 GND 42 GND
3 KAPWR 13 MSEI* 23 BG*/VF0 33 MDI1 43 MDO7
4 NC 14 GND 24 GND 34 GND 44 GND
5 NC 15 MDI0 25 MSEO* 35 IRQ/SGPIO 45 NC
6 NC 16 GND 26 IRQOUT* 36 GND 46 GND
7 HRESET* 17 MCKI 27 MDO1 37 MDO4 47 NC
8 +2.6V 18 GND 28 GND 38 GND 48 GND
9 EVTI* 19 MDO0 29 MDO2 39 MDO5 49 B0EPEE
10 GND 20 GND 30 GND 40 GND 50 GND
Similar as above for BDM port - Nexus port is fully configurable. Development tool (iC3000)
configures the port automatically. Low EVTI* enables the Nexus port. The information is
sampled with positive RSTI* transition. Port mode – full or reduced depends on MDI0 state. See
MPC 56x reference manual for more details.
RESET Switch
EVB56x board has a power on reset switch, which can be used, when the boot initialization is
required.
Status Indicators
Two LED diodes show the presence of supply voltages. Both LD1 (+3.3V) and LD2 (+2.6V)
must light when the power is applied to the evaluation board. Third LED diode (LD3) is
available for the user as a status indicator. For example- it can show that the application code is
operational. The diode is connected to the MPU pin PCS0/SS*/QGPI0 and will lit when the
output is low.
Pin
Signal Name
EVB565
1VFLS0
2 SRESET*
3GND
4DSCK
5GND
6VFLS1
7 HRESET*
8DSDI
9 +3.3V
10 DSDO
10
9
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