KSZ9563R datasheet(209/226 Pages) MICROCHIP

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DS00002419D-page 209

KSZ9563R

TABLE 6-11:

TRIGGER OUTPUT UNIT AND TIMESTAMP INPUT UNIT TIMING VALUES

Symbol

Description

Min

Typ

Max

Units

Trigger Output Unit Timing (Cascade Mode)

tCASP1

In cascade mode for TRIGX_CFG_1[6:4] = 100, or 101, or 110

(Neg. Edge, Pos. Edge, and Shift Reg. Output signals).

Minimum time between start of one TOU and the start of

another TOU cascaded on the same GPIO pin.

tCASP2

In cascade mode for TRIGX_CFG_1[6:4] = 010, 011, 100, or

101 (Neg. Pulse, Pos. Pulse, Neg. Periodic, and Pos. Periodic

Output signals).

Minimum time between start of one TOU and the start of

another TOU cascaded on the same GPIO pin.

120

tCYCCASP In cascade mode for TRIGX_CFG_1[6:4] = 010, and 011

(Neg. Pulse, Pos. Pulse Output signals).

In cascade mode, the cycle time of the trigger output unit oper-

ating in the indicated modes.

32 + PWIDTH2

tCYCNC1

In cascade mode for TRIGX_CFG_1[6:4] = 100 or 101

(Neg. Periodic, Pos. periodic Output signals).

Minimum cycle time for any trigger output unit operating in the

indicated modes.

32 + PWIDTH2

tGAP23

In cascade mode for TRIGX_CFG_1[6:4] = 010, and 011

(Neg. Pulse, Pos. Pulse Output signals):

Minimum gap time required between end of period of first trig-

ger output unit to beginning of output of 2nd trigger output unit.

PWIDTH2

In cascade mode, the minimum low or high pulse width of the

trigger output unit.

8ns

Trigger Output Unit Timing (Non-Cascade Mode)

tCYCNC2

In non-cascade mode, the minimum cycle time for any trigger

output unit.

32 + PWIDTH2

tPOGAP

In non-cascade mode, the minimum time between the end of

the generated pulse to the start of the next pulse.

PWIDTH1

In non-cascade mode, the minimum low or high pulse width of

the trigger output unit.

8ns

Timestamp Input Unit Timing

IPHIGH

Allowable high time of an incoming digital waveform on any

GPIO pin.

IPLOW

In non-cascade mode, the minimum time between the end of

the generated pulse to the start of the next pulse.

IPCYC

In non-cascade mode, the minimum time between the end of

the generated pulse to the start of the next pulse.

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