XC2287M Datasheet, PDF (119/142 Pages) Infineon Technologies AG – 16/32-Bit Single-Chip Microcontroller with 32-Bit Performance XC2000 Family Derivatives / Base Line

XC2287M, XC2286M, XC2285M
XC2000 Family Derivatives / Base Line
Electrical Parameters
4.6.5 External Bus Timing
The following parameters specify the behavior of the XC228xM bus interface.
Note: These parameters are not subject to production test but verified by design and/or
characterization.
Table 29 CLKOUT Reference Signal
Parameter
Symbol
Min.
Limits
Max.
Unit Note / Test
Condition
CLKOUT cycle time
t₅
CC
40/25/12.5¹⁾
ns
CLKOUT high time
t₆
CC 3
–
ns
CLKOUT low time
t₇
CC 3
–
ns
CLKOUT rise time
t₈
CC –
3
ns
CLKOUT fall time
t₉
CC –
3
ns
1) The CLKOUT cycle time is influenced by the PLL jitter (given values apply to f_SYS = 25/40/80 MHz).
For longer periods the relative deviation decreases (see PLL deviation formula).
t₅
t₆
t₇
t₉
t₈
CLKOUT
MC_X_ EBCCLKOUT
Figure 21 CLKOUT Signal Timing
Note: The term CLKOUT refers to the reference clock output signal which is generated
by selecting f_SYS as the source signal for the clock output signal EXTCLK on pin
P2.8 and by enabling the high-speed clock driver on this pin.
Data Sheet
119
V2.0, 2009-03