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IPIC
19 IPIC
This section describes the DC and AC electrical specifications for the external interrupt pins of the
MPC8309.
19.1
IPIC DC electrical characteristics
The following table provides the DC electrical characteristics for the external interrupt pins of the
MPC8309.
Table 49. IPIC DC electrical characteristics 1,2
Characteristic
Input high voltage
Input low voltage
Input current
Output High Voltage
Output low voltage
Output low voltage
Symbol
V IH
V IL
I IN
V OH
V OL
V OL
Condition
—
—
—
I OL = -8.0 mA
I OL = 6.0 mA
I OL = 3.2 mA
Min
2.0
–0.3
—
2.4
—
—
Max
OV DD + 0.3
0.8
±5
—
0.5
0.4
Unit
V
V
μ A
V
V
V
Notes:
1. This table applies for pins IRQ, MCP_OUT, and QE ports Interrupts.
2. MCP_OUT is open drain pins, thus V OH is not relevant for those pins.
19.2
IPIC AC timing specifications
The following table provides the IPIC input and output AC timing specifications.
Table 50. IPIC Input AC timing specifications 1
Characteristic
IPIC inputs—minimum pulse width
Symbol 2
t PIWID
Min
20
Unit
ns
Notes:
1. Input specifications are measured from the 50% level of the signal to the 50% level of the rising edge of SYS_CLK_IN.
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.
20 SPI
This section describes the DC and AC electrical specifications for the SPI of the MPC8309.
20.1
SPI DC electrical characteristics
The following table provides the DC electrical characteristics for the MPC8309 SPI.
MPC8309 PowerQUICC II Pro Integrated Communications Processor Family Hardware Specifications, Rev. 3
46
Freescale Semiconductor
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