Atmel SpaceWire Router SpW-10X User Manual

Ref.:   UoD_SpW-10X_ 

 

Issue:  3.4 

  

 

Date:  11

 

 

39

 

146 
145 
144 
143 

 (0)(dddddddd)

 - Data byte 

 

(1)(XXXXXXX0)

 - EOP. 

 

(1)(XXXXXXX1)

 - EEP. 

 
Bit 7 is the most significant bit of the data byte. 
Pull-up resistors (e.g. 4k7 

Ω) should be 

connected to these inputs if External FIFO port 
10 is not being used. 

152 

Out FIFO ready signal for external input port one. 

When high there is space in the FIFO so it can 
be written to. When low the FIFO is full. 

CMOS3V3

153 

In 

Asserted (low) to write to the external input 
port one FIFO. 
A pull-up resistor (e.g. 4k7 

Ω) should be 

connected to this input if External FIFO port 10 
is not being used. 

CMOS3V3

 

See section 6.1 for information on the operation of the external ports and section 10.3 for timing 
details.  

5.4 TIME-CODE SIGNALS 

The time-code interface signals are listed in Table 5-4. The timing of this interface is shown in  

Figure 6-3 and Figure 6-4. 

158 

In 

The rising edge of the EXT_TICK_IN signal is used 
to indicate when a time-code is to be sent. On the 
rising edge of the EXT_TICK_IN signal the 

 signal is sampled to determine if 

the time-code value is to be provided by the internal 
time-counter or by the external time input 

.  

The SEL_EXT_TIME and the EXT_TIME_IN(7:0) 
signals must be set up prior to the rising edge of 

 and must be held static sometime 

afterwards. See section 10.4 for timing details. 
If the time-code port is not being used this input 

CMOS3V3