Datasheet

Electrical Characteristics
MPC5674F Microcontroller Data Sheet, Rev. 9
Freescale Semiconductor 53
4.12.5 External Bus Interface (EBI) Timing
Table 35. Bus Operation Timing
1
Spec Characteristic Symbol
66 MHz (Ext. Bus Freq)
2 3
Unit Notes
Min Max
1 D_CLKOUT Period t
C
15.2 — ns Signals are measured at 50% V
DDE
.
2 D_CLKOUT Duty Cycle t
CDC
45% 55% t
C
3 D_CLKOUT Rise Time t
CRT
——
4
ns
4 D_CLKOUT Fall Time t
CFT
——
4
ns
5 D_CLKOUT Posedge to Output
Signal Invalid or High Z (Hold Time)
D_ADD[9:30]
D_BDIP
D_CS[0:3]
D_DAT[0:15]
D_OE
D_RD_WR
D_TA
D_TS
D_WE[0:3]/D_BE[0:3]
t
COH
1.0/1.5 — ns Hold time selectable via
SIU_ECCR[EBTS] bit:
EBTS = 0: 1.0 ns
EBTS = 1: 1.5 ns
6 D_CLKOUT Posedge to Output
Signal Valid (Output Delay)
D_ADD[9:30]
D_BDIP
D_CS[0:3]
D_DAT[0:15]
D_OE
D_RD_WR
D_TA
D_TS
D_WE[0:3]/D_BE[0:3]
t
COV
— 7.0/7.5 ns Output valid time selectable via
SIU_ECCR[EBTS] bit:
EBTS = 0: 7.0 ns
EBTS = 1: 7.5 ns