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PXR40 bảng dữ liệu(PDF) 82 Page - Freescale Semiconductor, Inc

tên linh kiện PXR40
Giải thích chi tiết về linh kiện  PXR40 Microcontroller
PDF  100 Pages
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nhà sản xuất  FREESCALE [Freescale Semiconductor, Inc]
Trang chủ  http://www.freescale.com
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PXR40 bảng dữ liệu(HTML) 82 Page - Freescale Semiconductor, Inc

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PXR40 Microcontroller Data Sheet, Rev. 1
Electrical characteristics
Freescale Semiconductor
82
Figure 17. Nexus timings
10
TDI, TMS Data Setup Time
tNTDIS, tNTMSS
8—
ns
11
TDI, TMS Data Hold Time
TNTDIH, tNTMSH
5—
ns
12
TCK Low to TDO Data Valid
tNTDOV
010
ns
13
RDY Valid to MCKO6
——
——
1 All Nexus timing relative to MCKO is measured from 50% of MCKO and 50% of the respective signal. Nexus timing specified
at VDD = 1.08 V to 1.32 V, VDDE = 3.0 V to 3.6 V, VDD33 and VDDSYN = 3.0 V to 3.6 V, TA =TL to TH, and CL = 30 pF with
DSC = 0b10.
2 The Nexus AUX port runs up to 82 MHz (pending characterization). Set NPC_PCR[MKCO_DIV] to correct division depending
on the system frequency, not to exceed maximum Nexus AUX port frequency.
3 See Notes on t
cyc on Figure 13 and Table 25 in Section Section 5.11.1 Clocking.
4 MDO, MSEO, and EVTO data is held valid until next MCKO low cycle.
5 Lower frequency is required to be fully compliant to standard.
6 The RDY pin timing is asynchronous to MCKO. The timing is guaranteed by design to function correctly.
Table 32. Nexus debug port timing1 (continued)
Spec
Characteristic
Symbol
Min
Max
Unit
4
1
2
3
5
MCKO
MDO
MSEO
EVTO
Output Data Valid
7
EVTI
6



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