Atmel AT7910E Bedienungsanleitung PDF herunterladen (Seite 15)

AT7910E [DATASHEET]

7796G AERO 02/13

Signal Name(1)(3)

Type(2)

Function

Buffer type

EXTOUTREAD10*

Asserted Low to read from the external output port one

FIFO.

CMOS3V3

EXTINFULL10*

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

EXTINWRITE10*

Asserted Low to write to the external input port one FIFO.

CMOS3V3

EXTTICKIN

The rising edge of the EXT_TICK_IN signal is used to

indicate when a time- code is to be sent

CMOS3V3

EXTTIMEIN[7:0]

EXT_TIME_IN(7:0) provides the value of the time-code to

be distributed by the router

CMOS3V3

SELEXTTIME

If SEL_EXT_TIME is high on the rising edge of

EXT_TICK_IN the value on EXT_TIME_IN(7:0) is loaded

into the internal time-code register and propagated by the

router.

CMOS3V3

TIMECTRRST

This signal causes the internal time-code counter to be

reset to zero.

CMOS3V3

EXTTICKOUT

The falling edge of EXT_TICK_OUT is used to indicated

the reception of a time-code.

CMOS3V3

EXTTIMEOUT[7:0]

Received time-code value which is valid when

EXT_TICK_OUT is asserted.

CMOS3V3

STATMUXADDR[3:0]

Select the error indication status signals to be output on

STAT_MUX_OUT

CMOS3V3

STATMUXOUT[7:0]

I/O

After reset the STAT_MUX_OUT pins are inputs which

define the power on configuration status of the router.

After the power on reset configuration of the router has

been read from STAT_MUX_OUT the pins are driven as

outputs by the router.

CMOS3V3

TESTEN

Shall be tied to ground

CMOS3V3

TESTIOEN

Shall be tied to ground

CMOS3V3

Notes:

1. Groups of pins represent busses where the highest number is the MSB.

2. O = Output; I = Input; I/O = Input/Output

3. XXX* = active low signal

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 21

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