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MPC5633MMLL80 数据表(PDF) 104 Page - Freescale Semiconductor, Inc |
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MPC5633MMLL80 数据表(HTML) 104 Page - Freescale Semiconductor, Inc |
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104 / 106 page  MPC5634M Microcontroller Data Sheet, Rev. 8 Freescale Semiconductor 104 4.16.3 Calibration bus interface timing Table 35. Calibration bus operation timing 1 1 Calibration bus timing specified at f SYS = 80 MHz, VDD = 1.14 V to 1.32 V, VDDE = 1.62 V to 3.6 V (unless stated otherwise), TA = TL to TH, and CL = 30 pF with DSC = 0b10. # Symbol C Characteristic 66 MHz (ext. bus)2 2 The external bus is limited to half the speed of the internal bus. The maximum external bus frequency is 66 MHz. Unit Notes Min Max 1TC CC P CLKOUT Period 15.2 — ns Signals are measured at 50% VDDE. 2tCDC CC D CLKOUT duty cycle 45% 55% TC 3tCRT CC D CLKOUT rise time — 3 3 Refer to Fast Pad timing in Table 31 and Table 32 (different values for 3.3 V vs. 1.8 V). ns 4tCFT CC D CLKOUT fall time — 3 ns 5tCOH CC D CLKOUT Posedge to Output Signal Invalid or High Z(Hold Time) ADDR[8:31] CS[0:3] DATA[0:31] OE RD_WR TS WE[0:3]/BE[0:3] 1.04/1.5 4 The EBTS=0 timings are only valid/ tested at V DDE=2.25–3.6 V, whereas EBTS=1 timings are valid/tested at 1.6–3.6 V. — ns Hold time selectable via SIU_ECCR[EBTS] bit: EBTS=0: 1.0ns EBTS=1: 1.5ns 6tCOV CC D CLKOUT Posedge to Output Signal Valid (Output Delay) ADDR[8:31] CS[0:3] DATA[0:31] OE RD_WR TS WE[0:3]/BE[0:3] —6.04/7.0 ns Output valid time selectable via SIU_ECCR[EBTS] bit: EBTS=0: 5.5ns EBTS=1: 6.5ns 7tCIS CC D Input Signal Valid to CLKOUT Posedge (Setup Time) DATA[0:31] 5.0 — ns 8tCIH CC D CLKOUT Posedge to Input Signal Invalid (Hold Time) DATA[0:31] 1.0 — ns 9tAPW CC D ALE Pulse Width5 5 Measured at 50% of ALE. 6.5 — ns 10 tAAI CC D ALE Negated to Address Invalid5 3— ns |
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