MPFS250T datasheet(121/128 Pages) MICROCHIP

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Condition

Unit

Max

Typ

Min

Symbol

Parameter

4.0

sp8s

SDI setup time

2.0

sp9s

SDI hold time

Notes:

1. Parameters are referenced to the active edge of SCK, which depends on the configured SPI protocol

(for example, Motorola SPI mode uses rising edge as active edge if SPO= 0).

2. SDI is clocked into SPI on active edge and clocked out on inactive edge. Therefore, SDO delay parameters

are dependent on SCK frequency (nominally SCK_period/2).

3. For specific rise/fall times, board design considerations, and detailed output buffer resistances, use the

corresponding IBIS models located online at Microsemi SoC Products Group.

Figure 10 • SPI Timing for a Single Frame Transfer in Motorola Mode (SPH = 1)

6.11.3

SmartDebug Probe Switching Characteristics

The following table describes characteristics of SmartDebug probe switching.

Table 154 • SmartDebug Probe Performance Characteristics

Unit

VDD = 1.05 V – 1

VDD = 1.05 V ST-

VDD = 1.0 V – 1

VDD = 1.0 V STD

Symbol

Parameter

MHz

100

FMAX

Maximum fre-

quency of probe

signal

TMin_delay

Minimum delay

of probe signal

TMax_delay

Maximum delay

of probe signal

6.11.4

DEVRST_N Switching Characteristics

The following table describes characteristics of DEVRST_N switching.

117

Microsemi Proprietary and Confidential. DS0147 Revision 1.0

AC Switching Characteristics

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