MCIMX31L FREESCALE [Freescale Semiconductor, Inc], MCIMX31L Datasheet - Page 38

• Manufacturer Part Number: MCIMX31L
• Description: Multimedia Applications Processors
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

1
Signal Descriptions
3.1.2
Table 5
is configurable by software, then the bit controlling this setting is described in that table.
38
Pin Name Group
Drive Strength Control Defines the driving strength of the pad.
The special TTM pad (at U20) is used by Freescale internally and must be connected to GND on the customer’s production board.
NGND10
NGND21
NGND22
NGND5
NGND6
NGND7
NGND8
NGND9
QVCC1
QVCC
Pull/Keep Enable
Pull/Keep Select
Schmitt Trigger
Supply Group
4
Open Drain
Slew Rate
Pull Value
Loopback
Term
shows the legend for the pin settings.
Pad Settings
Noisy
Noisy
Noisy
Noisy
Noisy
Noisy
Noisy
Noisy
Quiet
Quiet
Quiet
Defines the speed of the pad (fast or slow).
Enables the input buffer when the output buffer is enabled.
Resistor value on the pad.
The capability selected—pull or keeper. The signal has no meaning if pull/keeper enable is not enabled.
Pull or keeper enabled or not.
The signal that enables the open drain capability of the pad.
The signal that enables the Schmidt trigger capability of the pad.
The supply that the pad is connected to.
Description
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Table 4. Functional Multiplexing (continued)
i.MX31/i.MX31L Advance Information, Rev. 1.4
Hardware
Mode 1
Table 5. Pad Settings Legend
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Table 6
Mode
HW
2
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Preliminary
defines all the settings of each pad. If a pad’s settings
MUX_
SW_
EN
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Description
Mode
Alt
1
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Mode
Alt
2
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Mode
Alt
3
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Mode
Alt
4
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Freescale Semiconductor
Mode
Alt
5
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Mode
Alt
6
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GPIO
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