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SPC5644AF0MVZ1 Datasheet, PDF (107/138 Pages) Freescale Semiconductor, Inc – MPC5644A Microcontroller Data Sheet
Table 43. External bus interface (EBI) and calibration bus operation timing 1 (continued)
# Symbol C
Characteristic
66 MHz (ext. bus)2
Unit
Min
Max
6 tCOV CC D CLKOUT Posedge to Output Signal Valid —
(Output Delay)
9
ns
Notes
ADDR[8:31]
CS[0:3]
DATA[0:31]
OE
RD_WR
TS
WE[0:3]/BE[0:3]
7 tCIS CC D Input Signal Valid to CLKOUT Posedge
6.0
(Setup Time)
—
ns
DATA[0:31]
8 tCIH CC D CLKOUT Posedge to Input Signal Invalid 1.0
(Hold Time)
—
ns
DATA[0:31]
9 tAPW CC D ALE Pulse Width4
6.5
—
ns
10 tAAI CC D ALE Negated to Address Invalid4
1.55
—
ns
1 External Bus and Calibration bus timing specified at fSYS = 150 MHz and 100 MHz, VDD = 1.14 V to 1.32 V,
VDDE = 3 V to 3.6 V (unless stated otherwise), TA = TL to TH, and CL = 30 pF with DSC = 0b10.
2 The external bus is limited to half the speed of the internal bus. The maximum external bus frequency is 66 MHz
for 16-bit muxed mode and 33 MHz for non-muxed mode. For The EBI division factor should be set accordingly
based on the internal frequency being used.
3 Refer to Fast Pad timing in Table 35 and Table 36 (different values for 1.8 V vs. 3.3 V).
4 Measured at 50% of ALE.
5 When CAL_TS pad is used for CAL_ALE function the hold time is 1 ns instead of 1.5 ns.
CLKOUT
Vol_f
Voh_f
3
4
2
2
1
Figure 18. CLKOUT timing
VDDE/2
MPC5644A Microcontroller Data Sheet, Rev. 7
Freescale Semiconductor
107