Atmel SpaceWire Router SpW-10X - Manual (Page 38)

Ref.: UoD_SpW-10X_
UserManual
Issue: 3.4
SpW-10X
SpaceWire Router
User Manual Date: 11 th
July 2008
Preliminary
38
120
119
118
117
116
115 EXT9_IN_DATA(5)
EXT9_IN_DATA(4)
EXT9_IN_DATA(3)
EXT9_IN_DATA(2)
EXT9_IN_DATA(1)
EXT9_IN_DATA(0)
(8)(7......0)
– Bits
(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
9 is not being used.
124
EXT9_IN_FULL_N Out FIFO ready signal for external input port zero.
When high there is space in the FIFO so it can
be written to. When low the FIFO is full.
CMOS3V3
127 EXT9_IN_WRITE_N In Asserted (low) to write to the external input
port zero FIFO.
A pull-up resistor (e.g. 4k7
Ω) should be
connected to this input if External FIFO port 9
is not being used.
CMOS3V3
138
137
136
133
132
131
130
129
128 EXT10_OUT_DATA(8)
EXT10_OUT_DATA(7)
EXT10_OUT_DATA(6)
EXT10_OUT_DATA(5)
EXT10_OUT_DATA(4)
EXT10_OUT_DATA(3)
EXT10_OUT_DATA(2)
EXT10_OUT_DATA(1)
EXT10_OUT_DATA(0)
Out Output data from external port number two
FIFO . Bit eight determines the type - data,
eop or eep. The encodings are defined as:
(8)(7......0)
– Bits
(0)(dddddddd)
- Data byte
(1)(XXXXXXX0)
- EOP.
(1)(XXXXXXX1)
- EEP.
Bit 7 is the most significant bit of the data byte.
CMOS3V3
139 EXT10_OUT_EMPTY_N Out FIFO ready signal for external output port one.
When high the FIFO has data. When low the
FIFO is empty.
CMOS3V3
142 EXT10_OUT_READ_N In Asserted (low) to read from the external output
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
151
150
149
148
147
EXT10_IN_DATA(8)
EXT10_IN_DATA(7)
EXT1-_IN_DATA(6)
EXT10_IN_DATA(5)
EXT10_IN_DATA(4)
In Input data to external port number two FIFO.
Bit eight determines the type - data, eop or
eep. The encodings are defined as:
(8)(7......0)
– Bits
CMOS3V3