DSP56374 View Datasheet(PDF) - Motorola => Freescale
Part Name
Description
Manufacturer
DSP56374 Datasheet PDF : 128 Pages
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Signal Groupings
Table 8. Interrupt and Mode Control (Continued)
Signal Name
PH0
MODB/IRQB
Type
State
during
Reset
Signal Description
Input, output,
or
disconnected
Port H0—When the MODA/IRQA is configured as GPIO, this signal is
individually programmable as input, output, or internally disconnected.
Input
MODB
Input
Mode Select B/External Interrupt Request B—MODB/IRQB is an
active-low Schmitt-trigger input, internally synchronized to the DSP
clock. MODB/IRQB selects the initial chip operating mode during
hardware reset and becomes a level-sensitive or negative-edge-
triggered, maskable interrupt request input during normal instruction
processing. This pin can also be programmed as GPIO. MODA, MODB,
MODC, and MODD select one of 16 initial chip operating modes,
latched into OMR when the RESET signal is de-asserted.
PH1
MODC/IRQC
Input, output,
or
disconnected
Input
This pin has an internal pull up resistor.
This input is 5 V tolerant.
Port H1—When the MODB/IRQB is configured as GPIO, this signal is
individually programmable as input, output, or internally disconnected.
MODC
Input
Mode Select C/External Interrupt Request C—MODC/IRQC is an
active-low Schmitt-trigger input, internally synchronized to the DSP
clock. MODC/IRQC selects the initial chip operating mode during
hardware reset and becomes a level-sensitive or negative-edge-
triggered, maskable interrupt request input during normal instruction
processing. This pin can also be programmed as GPIO. MODA, MODB,
MODC, and MODD select one of 16 initial chip operating modes,
latched into OMR when the RESET signal is de-asserted.
PH2
MODD/IRQD
Input, output,
or
disconnected
Input
This pin has an internal pull up resistor.
This input is 5 V tolerant.
Port H2—When the MODC/IRQC is configured as GPIO, this signal is
individually programmable as input, output, or internally disconnected.
MODD
Input
Mode Select D/External Interrupt Request D—MODD/IRQD is an
active-low Schmitt-trigger input, internally synchronized to the DSP
clock. MODD/IRQD selects the initial chip operating mode during
hardware reset and becomes a level-sensitive or negative-edge-
triggered, maskable interrupt request input during normal instruction
processing. This pin can also be programmed as GPIO. MODA, MODB,
MODC, and MODD select one of 16 initial chip operating modes,
latched into OMR when the RESET signal is de-asserted.
PH3
Input, output,
or
disconnected
This pin has an internal pull up resistor.
This input is 5 V tolerant.
Port H3—When the MODD/IRQD is configured as GPIO, this signal is
individually programmable as input, output, or internally disconnected.
Freescale Semiconductor
PRELIMINARY
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