SPI
18.2
IPIC AC Timing Specifications
Table 63. IPIC Input AC Timing Specifications
Parameter
Symbol
t
PIWID
Min
20
Unit
ns
provides the IPIC input and output AC timing specifications.
IPIC inputs—minimum pulse width
Note:
1. Input specifications are measured from the 50% level of the signal to the 50% level of the rising edge of CLKIN. Timings are
measured at the pin.
2. IPIC inputs and outputs are asynchronous to any visible clock. IPIC outputs should be synchronized before use by any
external synchronous logic. IPIC inputs are required to be valid for at least t
PIWID
ns to ensure proper operation when working
in edge triggered mode.
19 SPI
This section describes the DC and AC electrical specifications for the SPI of the MPC8378E.
19.1
SPI DC Electrical Characteristics
Table 64. SPI DC Electrical Characteristics
Parameter
Condition
—
—
—
I
OH
= –8.0 mA
I
OL
= 8.0 mA
I
OL
= 3.2 mA
Symbol
V
IH
V
IL
I
IN
V
OH
V
OL
V
OL
Min
2.0
–0.3
—
2.4
—
—
Max
OV
DD
+ 0.3
0.8
± 30
—
0.5
0.4
Unit
V
V
μA
V
V
V
provides the DC electrical characteristics for the device SPI.
Input high voltage
Input low voltage
Input current
Output high voltage
Output low voltage
Output low voltage
19.2
SPI AC Timing Specifications
Table 65. SPI AC Timing Specifications
Parameter
Symbol
t
NIKHOV
t
NEKHOV
t
NIIVKH
t
NIIXKH
t
NEIVKH
Min
0.5
2
4
0
4
Max
6
8
—
—
—
Unit
ns
ns
ns
ns
ns
provides the SPI input and output AC timing specifications.
SPI outputs—Master mode (internal clock) delay
SPI outputs—Slave mode (external clock) delay
SPI inputs—Master mode (internal clock) input setup time
SPI inputs—Master mode (internal clock)input hold time
SPI inputs—Slave mode (external clock) input setup time
MPC8378E PowerQUICC
™
II Pro Processor Hardware Specifications, Rev. 2
76
Freescale Semiconductor
FREESCALE [ FREESCALE SEMICONDUCTOR, INC ]
