3 external interrupt timing – Texas Instruments TMS320F2802 User Manual

Page 117

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XNMI, XINT1, XINT2

t

w(INT)

Interrupt Vector

t

d(INT)

Address bus

(internal)

ADCSOCAO

or

ADCSOCBO

t

w(ADCSOCAL)

TMS320F2809, TMS320F2808, TMS320F2806

TMS320F2802, TMS320F2801, TMS320C2802

TMS320C2801, TMS320F28016, TMS320F28015

www.ti.com

SPRS230N – OCTOBER 2003 – REVISED MAY 2012

Table 6-30. External ADC Start-of-Conversion Switching Characteristics

PARAMETER

MIN

MAX

UNIT

t

w(ADCSOCAL)

Pulse duration, ADCSOCAO low

32t

c(HCO )

cycles

Figure 6-18. ADCSOCAO or ADCSOCBO Timing

6.10.3 External Interrupt Timing

Figure 6-19. External Interrupt Timing

Table 6-31. External Interrupt Timing Requirements

(1)

TEST CONDITIONS

MIN

MAX

UNIT

t

w(INT)

(2)

Pulse duration, INT input low/high

Synchronous

1t

c(SCO)

cycles

With qualifier

1t

c(SCO)

+ t

w(IQSW)

(1)

For an explanation of the input qualifier parameters, see

Table 6-15

.

(2)

This timing is applicable to any GPIO pin configured for ADCSOC functionality.

Table 6-32. External Interrupt Switching Characteristics

(1)

PARAMETER

MIN

MAX

UNIT

t

d(INT)

Delay time, INT low/high to interrupt-vector fetch

t

w(IQSW)

+ 12t

c(SCO)

cycles

(1)

For an explanation of the input qualifier parameters, see

Table 6-15

.

Copyright © 2003–2012, Texas Instruments Incorporated

Electrical Specifications

117

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