MCF5213 FREESCALE [Freescale Semiconductor, Inc], MCF5213 Datasheet - Page 33

• Manufacturer Part Number: MCF5213
• Description: MCF5213 ColdFire Microcontroller
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

2.8
1
2
3
4
5
6
7
8
9
2.9
GPIO can be configured for certain pins of the QSPI, DDR Control, timer, UART, and Interrupt interfaces. When in GPIO mode,
the timing specification for these pins is given in
Freescale Semiconductor
PLL reference frequency range
System frequency
Loss of reference frequency
Self clocked mode frequency
Crystal start-up time
EXTAL input high voltage
EXTAL input low voltage
PLL lock time
Duty cycle of reference
Frequency un-LOCK range
Frequency LOCK range
CLKOUT period jitter
On-chip oscillator frequency
• Crystal reference
• External reference
• External clock mode
• On-chip PLL frequency
• External reference
• External reference
• Peak-to-peak (clock edge to clock edge)
• Long term (averaged over 2 ms interval)
All internal registers retain data at 0 Hz.
Depending on packaging; see the orderable part number summary.
Loss of Reference Frequency is the reference frequency detected internally, which transitions the PLL into self clocked mode.
Self clocked mode frequency is the frequency at which the PLL operates when the reference frequency falls below f
default MFD/RFD settings.
This parameter is characterized before qualification rather than 100% tested.
Proper PC board layout procedures must be followed to achieve specifications.
This specification applies to the period required for the PLL to relock after changing the MFD frequency control bits in the
synthesizer control register (SYNCR).
Jitter is the average deviation from the programmed frequency measured over the specified interval at maximum f
Measurements are made with the device powered by filtered supplies and clocked by a stable external clock signal. Noise
injected into the PLL circuitry via V
for a given interval.
Based on slow system clock of 40 MHz measured at f
Clock Source Electrical Specifications
General Purpose I/O Timing
4,7
1
5, 6
4, 5, 8 ,9
4
Characteristic
3, 5
, measured at f
4
DDPLL
(V
DD
Table 29. PLL Electrical Specifications
MCF5213 ColdFire Microcontroller, Rev. 4
and V
and V
SYS
SSPLL
DDPLL
Max
Table 30
and variation in crystal oscillator frequency increase the C
= 2.7 to 3.6 V, V
sys
and
max.
Figure
5.
SS
f
Symbol
ref_crystal
V
V
f
C
ref_ext
f
f
f
IHEXT
ILEXT
f
f
SCM
= V
LOR
t
f
LCK
t
t
oco
sys
cst
UL
jitter
lpll
dc
SSPLL
= 0 V)
f
ref
–0.75
–1.5
7.84
Min
V
100
2.0
40
—
—
—
—
1
2
0
1
SS
/ 32
Electrical Characteristics
66.67 or 80
66.67 or 80
1000
Max
10.0
10.0
0.75
8.16
V
500
0.8
1.5
.01
10
60
10
5
DD
jitter
2
2
percentage
sys
% f
LOR
% f
% f
% f
MHz
MHz
MHz
MHz
Unit
.
kHz
ms
μs
V
V
sys
ref
ref
ref
with
33