NNDK-MOD5272-KIT NetBurner Inc, NNDK-MOD5272-KIT Datasheet - Page 451
NNDK-MOD5272-KIT
Manufacturer Part Number
NNDK-MOD5272-KIT
Description
KIT DEVELOP NETWORK FOR MOD5272
Manufacturer
NetBurner Inc
Series
ColdFire®r
Datasheets
1.MOD5272-100IR.pdf
(2 pages)
2.MOD5272-100IR.pdf
(550 pages)
3.NNDK-MOD5282-KIT.pdf
(2 pages)
Specifications of NNDK-MOD5272-KIT
Main Purpose
*
Embedded
*
Utilized Ic / Part
MOD5272
Primary Attributes
*
Secondary Attributes
*
Processor To Be Evaluated
MOD5272
Interface Type
RS-232, RS-485, USB
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
Other names
528-1001
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JTAG Test Access Port and BDM Debug Port
19.17.3 Test and Debug Data Out (TDO/DSO)
JTAG mode: The TDO output is for shifting data out of the serial data port logic. Shifting
out of data depends on the state of the JTAG controller state machine and the instructions
currently in the instruction register. This data shift occurs on the falling edge of TCK. When
TDO is not outputting data it is placed in a high-impedance state. TDO can also be
three-stated to allow bussed or parallel connections to other devices having JTAG test
access ports.
BDM mode: DSO is the debug data output.
19.17.4 Test and Debug Data In (TDI/DSI)
JTAG mode: The TDI input is for loading the serial data port shift registers (boundary scan
registers, bypass register and instruction register). Shifting in of data depends on the state
of the JTAG controller state machine and the instruction currently in the instruction register.
Data is shifted in on the rising edge of TCK.
BDM mode: DSI is the debug serial data input. This signal requires a 10-KΩ pullup resistor.
19.17.5 JTAG TRST and BDM Data Clock (TRST/DSCLK)
JTAG mode: TRST asynchronously resets the JTAG TAP logic when low.
BDM mode: DSCLK is the BDM serial data clock input. It requires a 10-KΩ pullup
resistor.
19.17.6 Motorola Test Mode Select (MTMOD)
MTMOD: When the MTMOD input is low, JTAG mode is enabled. When it is high, BDM
mode is enabled.
19.17.7 Debug Transfer Error Acknowledge (TEA)
An external slave asserts the TEA input to indicate an error condition for the current bus
transfer. It is provided to allow full debug port capability. The assertion of TEA causes the
MCF5272 to abort the current bus cycle. If a 10-KΩ pullup resistor is not connected,
external logic must drive TEA high when it is inactive. TEA has no effect during SDRAM
accesses. If high parasitic capacitance occurs on the printed circuit board, a lower value
pullup resistor may be needed.
19.17.8 Processor Status Outputs (PST[3:0])
PST[3:0] outputs indicate core status, as shown in Table 19-7. Debug mode timing is
synchronous with the processor clock; status is unrelated to the current bus transfer.
MOTOROLA
Chapter 19. Signal Descriptions
19-37
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