Atmel SpW-10X user manual TIME-CODE Signals, Time-Code Signals PinNo Dir Description Type

			SpW-10X	Ref.:	UoD_SpW-10X_
			SpaceWire Router		UserManual
				Issue:	3.4
			User Manual
				Date:	11th July 2008
146	EXT10_IN_DATA(3)		(0)(dddddddd) - Data byte
145	EXT10_IN_DATA(2)		(1)(XXXXXXX0) - EOP.
144	EXT10_IN_DATA(1)		(1)(XXXXXXX1) - EEP.
143	EXT10_IN_DATA(0)
			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	EXT10_IN_FULL_N	Out	FIFO ready signal for external input port one.			CMOS3V3
			When high there is space in the FIFO so it can
			be written to. When low the FIFO is full.
153	EXT10_IN_WRITE_N	In	Asserted (low) to write to the external input			CMOS3V3
			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.

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.

Table 5-4 Time-Code Signals

PinNo	Signal	Dir	Description	Type
158	EXT_TICK_IN	In	The rising edge of the EXT_TICK_IN signal is used	CMOS3V3
			to indicate when a time-code is to be sent. On the
			rising edge of the EXT_TICK_IN signal the
			SEL_EXT_TIME 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
			EXT_TIME_IN(7:0).
			The SEL_EXT_TIME and the EXT_TIME_IN(7:0)
			signals must be set up prior to the rising edge of
			EXT_TICK_IN 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
			Preliminary	39