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| Ref.: |
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| SpaceWire Router |
| UserManual |
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| Issue: | 3.4 |
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| User Manual |
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| Date: | 11th July 2008 |
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| should be pulled down (e.g. 4k7 Ω). |
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166 | EXT_TIME_IN(7) | In | EXT_TIME_IN(7:0) provides the value of the time- | CMOS3V3 |
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165 | EXT_TIME_IN(6) |
| code to be distributed by the router when an |
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164 | EXT_TIME_IN(5) |
| external |
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163 | EXT_TIME_IN(4) |
| SEL_EXT_TIME is high on the rising edge of |
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162 | EXT_TIME_IN(3) |
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| EXT_TICK_IN. |
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161 | EXT_TIME_IN(2) |
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| When SEL_EXT_TIME is high on the rising edge of |
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160 | EXT_TIME_IN(1) |
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| EXT_TICK_IN the value of the |
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159 | EXT_TIME_IN(0) |
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| used for bits 5:0 of the |
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| EXT_TIME_IN(7:0) are used for the two control |
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| signals, bits 7:6 of the |
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| If the |
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| should be pulled down (e.g. 4k7 Ω). |
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167 | SEL_EXT_TIME | In | If SEL_EXT_TIME is high on the rising edge of | CMOS3V3 |
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| EXT_TICK_IN the value on EXT_TIME_IN(7:0) is |
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| loaded into the internal |
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| propagated by the router. |
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| If SEL_EXT_TIME is low on the rising edge of |
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| EXT_TICK_IN the value to be sent in the |
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| will be taken from the internal |
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| the router. The two |
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| EXT_TIME_IN(7:0) input. |
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| If the |
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| should be pulled down (e.g. 4k7 Ω). |
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168 | TIME_CTR_RST | In | This signal causes the internal | CMOS3V3 |
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| be reset to zero. |
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| The timing parameters used for EXT_TICK_IN also |
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| apply to the |
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| (TIME_CTR_RST). |
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| If the |
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| should be pulled down (e.g. 4k7 Ω). |
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169 | EXT_TICK_OUT | Out | The falling edge of EXT_TICK_OUT is used to | CMOS3V3 |
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| indicated the reception of a |
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| this |
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| outputs and is valid on the rising edge of |
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| EXT_TICK_OUT. |
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179 | EXT_TIME_OUT(7) | Out | Received |
| CMOS3V3 |
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178 | EXT_TIME_OUT(6) |
| EXT_TICK_OUT is asserted. |
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177 | EXT_TIME_OUT(5) |
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176 | EXT_TIME_OUT(4) |
| The value of a received |
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173 | EXT_TIME_OUT(3) |
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| Preliminary |
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| 40 |
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