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12. Serial RapidIO Registers > RapidIO Physical Layer Registers
284
Tsi576 User Manual
June 6, 2016
Integrated Device Technology
www.idt.com
5:7
OVER_PWIDTH
Override Port Width
Software port configuration that overrides the hardware size. This
field is valid only if the PORT_WIDTH field is set to 01 and the
port is operating in 4x mode. If a port that only has 1x mode
functionality is placed in 4x mode, the odd numbered port
becomes disabled.
Can be configured as a power-up option (I
2
C) or forced during
normal mode of operation (forced re-initialization).
• 000 = No override (stay in current operation mode, either 1x or
4x)
• 001 = Reserved
• 010 = Force single lane, lane 0
• 011 = Force single lane, lane 2
Other values are reserved.
Re-initialization occurs on the port if the value of this register is
changed. Re-initialization can be forced by the FORCE_REINIT
field of the
“RapidIO Port x Control Independent Register” on
register.
Note: Initial port width of the port is set by SPx_MODESEL pins at
power-up. After reset release, the SPx_MODESEL pins are
ignored and configuration is controlled by this register.
R/W
0
8
PORT_DIS
Port Disable
0 = Port receivers/drivers are enabled.
1 = Port receivers/drivers are disabled and are unable to
receive/transmit to any packets or control symbols.
When the port is disabled, there is no data flow to the output
drivers. Transmit drivers of a disabled port transmits all zeros.
Any data sent to this port sits in the Output Queue.
R/W
0
9
OUTPUT_EN
Output Port Transmit Enable
0 = Port is stopped and is not able to issue any packets. It can
only route and respond to maintenance packets.
1 = Port is enabled to issue any packets.
R/W
1
10
INPUT_EN
Inbound Port Enable
0 = Inbound port is stopped and only routes or responds to
maintenance requests. Other packets generate
packet-not-accepted control symbols to force an error condition
on the sending device.
1 = Inbound port responds to any packet.
R/W
1
(Continued)
Bits
Name
Description
Type
Reset
Value
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...