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MPC8240EC датащи(PDF) 23 Page - Motorola, Inc |
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MPC8240EC датащи(HTML) 23 Page - Motorola, Inc |
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23 / 52 page ![]() MOTOROLA MPC8240 Integrated Processor Hardware Specifications 23 Electrical and Thermal Characteristics Figure 15. I2C Timing Diagram III Figure 16. I2C Timing Diagram IV (Qualified Signal) 1.4.2.6 PIC Serial Interrupt Mode AC Timing Specifications Table 14 provides the PIC serial interrupt mode AC timing specifications for the MPC8240. Table 14. PIC Serial Interrupt Mode AC Timing Specifications At recommended operating conditions (see Table 2) with LVDD = 3.3 V ± 0.3 V Num Characteristic Min Max Unit Notes 1 S_CLK frequency 1/14 SDRAM_SYNC_IN 1/2 SDRAM_SYNC_IN MHz 1 2 S_CLK duty cycle 40 60 % 3 S_CLK output valid time — 6 ns 4 Output hold time 0 — ns 5S_FRAME, S_RST output valid time —1 sys_logic_clk period + 6 ns 2 6 S_INT input setup time to S_CLK 1 sys_logic_clk period + 2 — ns 2 Input Data Valid DFFSR FILTER CLK 1 SDA 7 Note: 1. DFFSR filter clock is the SDRAM_CLK clock times DFFSR value. SCL/SDArealtime VM SCL/SDAqualified VM Delay 1 Note: 1. The delay is the local memory clock times DFFSR times 2 plus 1 local memory clock. Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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