Datasheet

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15-38 MCF5206e USER’S MANUAL MOTOROLA
15.4 MOTOROLA RECOMMENDED BDM PINOUT
The ColdFire BDM connector is a 26-pin Berg connector arranged 2x13, shown in Figure
15-6.
NOTES:
1. Supplied by target
2. Pins reserved for BDM developer use. Contact developer.
* Denotes a vectored signal
Figure 15-7. 26-Pin Berg Connector Arranged 2x13
15.4.1 Differences Between the ColdFire BDM and a CPU32 BDM
1. DSCLK, BKPT, and DSDI must meet the setup and hold times relative to the rising
edge of the processor clock to prevent the processor from propagating metastable
states.
2. DSO transitions relative to the rising edge of DSCLK only. In the CPU32 BDM, DSO
transitions between serial transfers to indicate to the development system that a com-
mand has successfully completed. The ColdFire BDM does not support this feature.
3. The development system must note that the DSO is not valid during the first rising
edge of DSCLK. Instead, the first rising edge of DSCLK causes DSO to transmit the
MSB of DSO. A serial transfer is illustrated in Figure 15-8.
1
3
5
7
9
11
13
15
17
19
21
23
25
2
4
6
8
10
12
14
16
18
20
22
24
26
DEVELOPER RESERVED
2
GND
GND
RESET*
+5V
1
GND
PST2
PST0
DDATA2
DDATA0*
MOTOROLA RESERVED
GND
VCC_CPU
BKPT
DSCLK
DEVELOPER RESERVED
2
DSI
DSO
PST3*
PST1
DDATA3*
DDATA1
GND
MOTOROLA RESERVED
CLK_CPU
TEA
Fr
eescale S
emiconduct
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Freescale Semiconductor, Inc.
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