Atmel SpaceWire Router SpW-10X Manual De Usuario

Ref.:   UoD_SpW-10X_ 

 

Issue:  3.4 

  

 

Date:  11

 

 

40

 

should be pulled down (e.g. 4k7 

Ω). 

166 
165 
164 
163 
162 
161 
160 
159 
 

In 

 provides the value of the time-

code to be distributed by the router when an 
external time-code source is selected i.e. when 

is high on the rising edge of  

EXT_TICK_IN. 
When SEL_EXT_TIME is high on the rising edge of 

the value of the time-code counter is 

used for bits 5:0 of the time-code and bits 7:6 of the 

  are used for the two control 

signals, bits 7:6 of the time-code. 
If the time-code port is not being used these inputs 
should be pulled down (e.g. 4k7 

Ω). 

CMOS3V3

167 

In If 

is high on the rising edge of 

the value on EXT_TIME_IN(7:0) is 

loaded into the internal time-code register and 
propagated by the router. 
If SEL_EXT_TIME is low on the rising edge of 

the value to be sent in the time-code 

will be taken from the internal time-code counter in 
the router. The two control-bits (bits 7:6) of the 
time-code will come from bits 7:6 of the 

input. 

If the time-code port is not being used this input 
should be pulled down (e.g. 4k7 

Ω). 

CMOS3V3

168 

In 

This signal causes the internal time-code counter to 
be reset to zero.  
The timing parameters used for EXT_TICK_IN also 
apply to the time-code counter reset signal 

(TIME_CTR_RST). 
If the time-code port is not being used this input 
should be pulled down (e.g. 4k7 

Ω). 

CMOS3V3

169 

Out  The falling edge of EXT_TICK_OUT is used to 

indicated the reception of a time-code. The value of 
this time-code is place on the EXT_TIME_OUT(7:0) 
outputs and is valid on the rising edge of 

. 

CMOS3V3

179 
178 
177 
176 
173 

Out  Received time-code value which is valid when 

is asserted. 

 
The value of a received time-code is output on the 

CMOS3V3