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Spw-10x spacewire router, User manual, Preliminary – Atmel SpaceWire Router SpW-10X User Manual

Page 129: 3 external port timing parameters

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Ref.: UoD_SpW-10X_

UserManual

Issue: 3.4

SpW-10X

SpaceWire Router

User Manual

Date: 11

th

July 2008

Preliminary

129

Table 10-2 Serial signal timing parameters

Description Symbol

Value

Units

DS maximum input bit rate

T

DS

200+2%

Mbits/s,

max

DS minimum consecutive edge separation

T

DSINS

3

ns,

min

Minimum edge separation between 2 consecutive edges T

DSINS2

7.5

ns,

min

Data Strobe output skew & jitter (incl. LVDS driver)

T

DSOSKEWJIT

1.2

ns,

max

10.3 EXTERNAL PORT TIMING PARAMETERS

The external port input timing parameters can be viewed below

CLK

EXT_IN_WRITE_N

EXT_IN_DATA

EXT_IN_FULL_N

T

EXTFFCKO

T

EXTODATSU

T

EXTODATHLD

T

EXTWRSU

T

EXTWRHLD

Figure 10-2 External port input FIFO timing parameters

The external port input timing parameters can be viewed below

CLK

EXT_OUT_READ_N

EXT_OUT_DATA

EXT_OUT_EMPTY_N

T

EXTEFCKO

T

EXTRDSU

T

EXTRDHLD

T

EXTODATCKO

Figure 10-3 External port output FIFO timing parameters