Reset, Stop, Wait, Mode Select, and Interrupt Timing
56F8322 Technical Data, Rev. 10.0
Freescale Semiconductor 113
Preliminary
10.8 Reset, Stop, Wait, Mode Select, and Interrupt Timing

Note: All address and data buses described here are internal.

Figure 10-5 Asynchronous Reset Timing

Figure 10-6 External Interrupt Timing (Negative Edge-Sensitive)

Table 10-17 Reset, Stop, Wait, Mode Select, and Interrupt Timing1,2
1. In the formulas, T = clock cycle. For an operating frequency of 60MHz, T = 16.67ns. At 8MHz (used during Reset and Stop
modes), T = 125ns.
2. Parameters listed are guaran teed by design.
Characteristic Symbol Typical
Min
Typical
Max Unit See
Figure
Minimum RESET Assertion Duration tRA 16T ns 10-5
Edge-sensitive Interrupt Request Width tIRW 1.5T — ns 10-6
IRQA, IRQB Assertion to General Purpose Output
Valid, caused by first instruction execution in the
interrupt service routine
tIG 18T — ns 10-7
tIG - FAST 14T —
IRQA Width Assertion to Recover from Stop State3
3. The interrupt instruction fetch is visible on the pins only in Mode 3.
tIW 1.5T — ns 10-8

First Fetch

tRA
tRAZ tRDA

PAB

PDB

RESET

IRQA

tIRW