Freescale Semiconductor Symphony DSP56724 Reference Manual page 30

Signal Descriptions
Signal Name Type
PG6 Input, Output,
or
Disconnected
MODA1/IRQC Input
PG7 Input, Output,
or
Disconnected
MODB1/IRQD Input
PG8 Input, Output,
or
Disconnected
Symphony DSP56724/DSP56725 Multi-Core Audio Processors, Rev. 0
2-8
Table 2-8. Interrupt and Mode Control (Continued)
State During
Reset
GPIO Port G6
When the MODB0/IRQB is configured as GPIO, this signal is individually
programmable as input, output, or internally disconnected; and can be controlled
by either of the two cores. Uses an internal pull-up resistor.
MODA1 Mode Select A1/External Interrupt Request C
Input MODA1/IRQC is an active-low Schmitt-trigger input, internally synchronized to
the DSP clock. MODA1/IRQC selects the initial DSP Core-0 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.
MODA1, MODB1, MODC1, and MODD1 levels select one of 16 initial chip
operating modes, and are latched into the DSP Core-1 OMR when the RESET
signal is de-asserted.
GPIO Port G7
When the MODA1/IRQC is configured as GPIO, this signal is individually
programmable as input, output, or internally disconnected; and this signal can be
controlled by either of the two cores. Uses an internal pull-up resistor.
MODB1 Mode Select B1/External Interrupt Request D
Input MODB1/IRQD is an active-low Schmitt-trigger input, internally synchronized to
the DSP clock. MODB1/IRQD selects the initial DSP Core-1 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.
MODA1, MODB1, MODC1, and MODD1 levels select one of 16 initial chip
operating modes, and are latched into the DSP Core-1 OMR when the RESET
signal is de-asserted.
GPIO Port G8
When the MODB1/IRQD is configured as GPIO, this signal is individually
programmable as input, output, or internally disconnected; and can be controlled
by either of the two cores. Uses an internal pull-up resistor.
Description
Freescale Semiconductor