MPC8245 datasheet(29/68 Pages) FREESCALE

tên linh kiện	MPC8245

Giải thích chi tiết về linh kiện	Integrated Processor Hardware Specifications

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MPC8245 Integrated Processor Hardware Specifications, Rev. 10

Freescale Semiconductor

Electrical and Thermal Characteristics

Figure 18. PIC Serial Interrupt Mode Output Timing Diagram

Figure 19. PIC Serial Interrupt Mode Input Timing Diagram

4.8

IEEE 1149.1 (JTAG) AC Timing Specifications

Table 15 provides the JTAG AC timing specifications for the MPC8245 while in the JTAG operating mode

at recommended operating conditions (see Table 2) with LVDD = 3.3 V ± 0.3 V. Timings are independent

of the system clock (PCI_SYNC_IN).

Table 15. JTAG AC Timing Specification (Independent of PCI_SYNC_IN)

Num

Characteristic

Min

Max

Unit

Notes

TCK frequency of operation

MHz

TCK cycle time

—

TCK clock pulse width measured at 1.5 V

—

TCK rise and fall times

4TRST setup time to TCK falling edge

—

5TRST assert time

—

Input data setup time

—

Input data hold time

—

TCK to output data valid

TCK to output high impedance

TMS, TDI data setup time

—

S_CLK

S_RST

S_FRAME

sys_logic_clk

S_CLK

S_INT

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