Motorola ColdFire MCF5281 - Manual (Page 696)

Electrical Characteristics
33-12 Freescale Semiconductor
Figure 33-2. General Input Timing Requirements
33.9 Processor Bus Output Timing Specifications
Table 33-14 lists processor bus output timings.
Table 33-15. External Bus Output Timing Specifications
Name Characteristic Symbol Min Max Unit
Control Outputs
B6a CLKOUT high to chip selects valid
1
t
CHCV
— 0.5t
CYC
+10 ns
B6b CLKOUT high to byte enables (BS[3:0]) valid
2
t
CHBV
— 0.5t
CYC
+10 ns
B6c CLKOUT high to output enable (OE) valid
3
t
CHOV
— 0.5t
CYC
+10 ns
B7 CLKOUT high to control output (BS[3:0], OE) invalid t
CHCOI
0.5t
CYC
+ 2 — ns
B7a CLKOUT high to chip selects invalid t
CHCI
0.5t
CYC
+ 2 — ns
Address and Attribute Outputs
Invalid Invalid
CLKOUT(66.67 MHz)
T
SETUP
T
HOLD
Input Setup And Hold
1.5V
t
rise
= 1.5 ns
V
h
= V
IH
V
l
= V
IL
1.5V 1.5V Valid
t
fall
= 1.5 ns
V
h
= V
IH
V
l
= V
IL
Input Rise Time
Input Fall Time
* The timings are also valid for inputs sampled on the negative clock edge.
Inputs
CLKOUT B4
B5
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3