DSP56371D Motorola Inc, DSP56371D Datasheet - Page 8

• Manufacturer Part Number: DSP56371D
• Description: high density CMOS device
• Manufacturer: Motorola Inc

Reset, Stop, Mode Select, and Interrupt Timing
8
Note:
No.
20
21
22
Interrupt Requests Rate
DMA Requests Rate
1.
2.
3.
4.
•
•
•
•
•
•
•
•
•
Table 6 Reset, Stop, Mode Select, and Interrupt Timing (continued)
When using fast interrupts and IRQA, IRQB, IRQC, and IRQD are defined as level-sensitive, timings
19 through 21 apply to prevent multiple interrupt service. To avoid these timing restrictions, the
deasserted Edge-triggered mode is recommended when using fast interrupts. Long interrupts are
recommended when using Level-sensitive mode.
For PLL disable, using external clock (PCTL Bit 13 = 0), no stabilization delay is required and recovery
time will be defined by the OMR Bit 6 settings.
For PLL enable, (if bit 12 of the PCTL register is 0), the PLL is shutdown during Stop. Recovering from
Stop requires the PLL to get locked. The PLL lock procedure duration, PLL Lock Cycles (PLC), may be
in the range of 0.5 ms.
Periodically sampled and not 100% tested
RESET duration is measured during the time in which RESET is asserted, V
EXTAL input is active and valid. When the V
conditions (as specified above) have not been yet met, the device circuitry will be in an uninitialized
state that can result in significant power consumption and heat-up. Designs should minimize this state
to the shortest possible duration.
Delay from IRQA, IRQB, IRQC,
IRQD, NMI assertion to
general-purpose transfer output
valid caused by first interrupt
instruction execution
ESAI, ESAI_1, SHI, DAX, Timer
DMA
IRQ, NMI (edge trigger)
IRQ (level trigger)
Data read from ESAI, ESAI_1,
SHI, DAX
Data write to ESAI, ESAI_1, SHI,
DAX
Timer
IRQ, NMI (edge trigger)
Characteristics
Freescale Semiconductor, Inc.
For More Information On This Product,
DSP56371 Technical Data
Go to: www.freescale.com
DD
is valid, but the other “required RESET duration”
Expression
10 x T
12 x T
12 c T
8 x T
8 x T
6 x T
7 x T
2 x T
3 x T
C
+ 3.0
C
C
C
C
C
C
C
C
Min
DD
—
—
—
—
—
—
—
—
is valid, and the
Max
59.0
—
—
—
—
—
—
—
—
MOTOROLA
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns