MSC7118 Freescale Semiconductor / Motorola, MSC7118 Datasheet - Page 36

• Manufacturer Part Number: MSC7118
• Description: Low-Cost 16-bit DSP with DDR Controller
• Manufacturer: Freescale Semiconductor / Motorola

2.5.10
Figure 20 shows the signal behavior of the EVNT pins.
2.5.11
Figure 21 shows the signal behavior of the
36
Notes:
Notes:
Number
Number
601
602
603
604
67
68
1.
2.
3.
1.
2.
3.
4.
5.
6.
Event Timing
GPIO Timing
Refer to Table 23 for a definition of the APBCLK period.
Direction of the EVNT signal is configured through the GPIO and Event port registers.
Refer to the signal chapter in the MSC711x Reference Manual for details on EVNT pin functionality.
Refer to Table 23 for a definition of the APBCLK period.
Direction of the GPIO signal is configured through the GPIO port registers.
Refer to Section 1.5 for details on GPIO pin functionality.
GPI data is synchronized to the APBCLK internally and the minimum listed is the capability of the hardware to capture data
into a register when the GPADR is read. The specification is not tested due to the asynchronous nature of the input and
dependence on the state of the DSP core. It is guaranteed by design.
The output signals cannot toggle faster than 75 MHz.
Level-sensitive interrupts should be held low until the system determines (via the service routine) that the interrupt is
acknowledged.
EVNT as input
EVNT as output
GPI
GPO
Port A edge-sensitive interrupt
Port A level-sensitive interrupt
4.5
5
MSC7118 Low-Cost 16-bit DSP with DDR Controller Data Sheet, Rev. 7
Characteristics
Characteristics
EVNT out
EVNT in
GPO
GPI
Table 26. GPIO Signal Timing
GPI/GPO
Figure 21. GPI/GPO Pin Timing
Table 25. EVNT Signal Timing
Figure 20. EVNT Pin Timing
pins.
Synchronous to core clock
Synchronous to core clock
Asynchronous
Asynchronous
Asynchronous
Asynchronous
Type
Type
1,2,3
602
601
68
67
1.5 × APBCLK periods
1.5 × APBCLK periods
1.5 × APBCLK periods
3 × APBCLK periods
Freescale Semiconductor
1 APBCLK period
1 APBCLK period
Min
Min
6