11. Signals > Signal Groupings
223
Tsi576 User Manual
June 6, 2016
Integrated Device Technology
www.idt.com
SP{n}_PWRDN
I/O,
LVTTL,
PU
Port n Transmit and Receive Power Down Control
This signal controls the state of Port n
and Port
n+1.
The PWRDN controls the state of all four
lanes (A/B/C/D) of SerDes Macro.
0 = Port n Powered Up. Port n+1 controlled by
SP{n+1}_PWRDN.
1 = Port n Powered Down. Port n+1 Powered
Down.
Override SP{n}_PWRDN using PWDN_X4 field in
the
“SRIO MAC x Digital Loopback and Clock
Selection Register” on page 379
.
Output capability of this pin is only used in test
mode.
This signal must remain stable for 10 P_CLK
cycles after HARD_RST_b is de-asserted in order
to be sampled correctly.
This signal is ignored after reset.
Pin must be tied off according to
the required configuration. Either
a 10K pull up to VDD_IO or a
10K pull-down to VSS_IO.
Internal pull-up can be used for
logic 1.
SP{n+1}_PWRDN
I/O,
LVTTL,
PU
Port n+1 Transmit and Receive Power Down
Control
This signal controls the state of Port n+1. Note that
Port n+1 is never used when 4x mode is selected
for a Serial Rapid I/O MAC, and it must be
powered down.
0 = Port n+1 Powered Up
1 = Port n+1 Powered Down
Override SP{n+1}_PWRDN using PWDN_X1 field
in
“SRIO MAC x Digital Loopback and Clock
Selection Register” on page 379
.
Output capability of this pin is only used in test
mode.
This signal must remain stable for 10 P_CLK
cycles after HARD_RST_b is de-asserted in order
to be sampled correctly.
This signal is ignored after reset.
Pin must be tied off according to
the required configuration. Either
a 10K pull up to VDD_IO or a
10K pull-down to VSS_IO.
Internal pull-up can be used for
logic 1.
Table 31: Tsi576 Signal Descriptions (Continued)
Pin Name
Type
Description
Recommended Termination
a
Содержание IDT Tsi576
Страница 1: ...IDT Tsi576 Serial RapidIO Switch User Manual June 6 2016 Titl...
Страница 20: ...About this Document 20 Tsi576 User Manual June 6 2016 Integrated Device Technology www idt com...
Страница 34: ...1 Functional Overview JTAG Interface 34 Tsi576 User Manual June 6 2016 Integrated Device Technology www idt com...
Страница 102: ...4 Internal Switching Fabric Packet Queuing 102 Tsi576 User Manual June 6 2016 Integrated Device Technology www idt com...
Страница 230: ...11 Signals Pinlist and Ballmap 230 Tsi576 User Manual June 6 2016 Integrated Device Technology www idt com...
Страница 506: ...B Clocking P_CLK Programming 506 Tsi576 User Manual June 6 2016 Integrated Device Technology www idt com...
Страница 528: ...Index 528 Tsi576 User Manual June 6 2016 Integrated Device Technology www idt com...