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Electrical characteristics
MPC560xS Microcontroller Data Sheet, Rev. 5
Preliminary—Subject to Change Without Notice
Freescale Semiconductor
117
3.20.8
I2C timing
Table 63. I2C input timing specifications — SCL and SDA
No. Symbol C
Parameter
Value
Unit
Min
Max
1
—
CC
D Start condition hold time
2
—
IP-Bus Cycle1
1 Inter Peripheral Clock is the clock at which the I2C peripheral is working in the device
2
—
CC
D Clock low time
8
—
IP-Bus Cycle1
4
—
CC
D Data hold time
0.0
—
ns
6
—
CC
D Clock high time
4
—
IP-Bus Cycle1
7
—
CC
D Data setup time
0.0
—
ns
8
—
CC
D Start condition setup time (for repeated start condition only)
2
—
IP-Bus Cycle1
9
—
CC
D Stop condition setup time
2
—
IP-Bus Cycle1
Table 64. I2C output timing specifications — SCL and SDA
No. Symbol C
Parameter
Value
Unit
Min
Max
11
1 Programming IBFD (I2C bus Frequency Divider) with the maximum frequency results in the minimum output timings
listed. The I2C interface is designed to scale the data transition time, moving it to the middle of the SCL low period.
The actual position is affected by the prescale and division values programmed in IFDR.
—
CC
D Start condition hold time
6
—
IP-Bus Cycle2
2 Inter Peripheral Clock is the clock at which the I2C peripheral is working in the device
21
—
CC
D Clock low time
10
—
IP-Bus Cycle1
33
3 Because SCL and SDA are open-drain-type outputs, which the processor can only actively drive low, the time SCL
or SDA takes to reach a high level depends on external signal capacitance and pullup resistor values.
—
CC
D SCL/SDA rise time
—
99.6
ns
41
—
CC
D Data hold time
7
—
IP-Bus Cycle1
51
—
CC
D SCL/SDA fall time
—
99.5
ns
61
—
CC
D Clock high time
10
—
IP-Bus Cycle1
71
—
CC
D Data setup time
2
—
IP-Bus Cycle1
81
—
CC
D Start condition setup time (for repeated start condition only)
20
—
IP-Bus Cycle1
91
—
CC
D Stop condition setup time
10
—
IP-Bus Cycle1
Because
of
an
order
from
the
United
States
International
Trade
Commission,
BGA-packaged
product
lines
and
part
numbers
indicated
here
currently
are
not
available
from
Freescale
for
import
or
sale
in
the
United
States
prior
to
September
2010:
MPC5606S
products
in
208
MAPBGA
packages