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MPC5121E データシート(PDF) 79 Page - Freescale Semiconductor, Inc

部品番号 MPC5121E
部品情報  Advance Information
PDF  86 Pages
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メーカー  FREESCALE [Freescale Semiconductor, Inc]
ホームページ  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MPC5121E データシート(HTML) 79 Page - Freescale Semiconductor, Inc

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System Design Information
MPC5121E/MPC5123 Data Sheet, Rev. 1
Freescale Semiconductor
79
For a board with a COP (common on-chip processor) connector that accesses the JTAG interface and needs to reset the JTAG
module, only wiring TRST and PORESET is not recommended.
To reset the MPC5121e/MPC5123 via the COP connector, the HRESET pin of the COP should be connected to the HRESET
pin of the MPC5121e/MPC5123. The circuitry shown in Figure 61 allows the COP to assert HRESET or TRST separately,
while any other board sources can drive PORESET.
2See Note4
qack4
——
O
1TDO
tdo
—
—
I
1 With respect to the emulator tool’s perspective:
Input is really an output from the embedded e300 core.
Output is really an input to the core.
2 From the board under test, power sense for chip power.
3 HALTED is not available from e300 core.
4 Input to the e300 core to enable/disable soft-stop condition during breakpoints.
MPC5121e/MPC5123 internally ties CORE_QACK to GND in its normal/functional mode
(always asserted).
Table 52. COP/BDM Interface Signals (continued)
BDM
Pin #
MPC5121e/MPC51
23 I/O Pin
BDM Connector
Internal
Pull Up/Down
External
Pull Up/Down
I/O1
Preliminary



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