Electrical Characteristics
Num
Table 17. Mini-FlexBus AC Timing Specifications
Characteristic
Frequency of Operation
MB1 Clock Period
Min
Max
Unit
Notes
—
12.5
—
2
80
—
8
MHz
ns
1
1
2
2
MB2 Output Valid
MB3 Output Hold
MB4 Input Setup
MB5 Input Hold
ns
—
—
—
ns
6
ns
0
ns
1
2
Specification is valid for all MB_A[19:0], MB_D[7:0], MB_CS[1:0], MB_OE, MB_R/W, and MB_ALE.
Specification is valid for all MB_D[7:0].
MB_CLK
MB1
MB3
MB_A[19:X]
A[19:X]
MB2
ADDRESS
MB5
MB_D[7:0] /
MB_A[15:0]
D[Y:0]
MB4
MB_R/W
MB_ALE
MB3
MB2
MB_CSn
MB_OE
MB3
MB2
Figure 5. Mini-FlexBus Read Timing
MCF52259 ColdFire Microcontroller, Rev. 0
36
Freescale Semiconductor
FREESCALE [ Freescale ]
