px1011a NXP Semiconductors, px1011a Datasheet - Page 13

• Manufacturer Part Number: px1011a
• Description: Px1011a/px1012a Pci Express Stand-alone X1 Phy
• Manufacturer: NXP Semiconductors

Philips Semiconductors
PX1011A_PX1012A_2
Product data sheet
8.8 Electrical idle
The PCI Express Base Specification requires that devices send an Electrical Idle
ordered-set before TX goes to the electrical idle state.
The timing diagram of
Fig 7. Loopback end
Fig 8. Electrical Idle
RXDET_LOOPB
TXDATA[7:0]
TX_P, TX_N
RXDATA[7:0]
TX_P, TX_N
TXDATAK
TXIDLE
TXCLK
TXIDLE
RXCLK
TXCLK
ScZero
active (ends with Electrical Idle ordered-set)
COM
Looped back RX data
Figure 8
Rev. 02 — 18 May 2006
COM
IDL
shows an example of timing for entering electrical idle.
includes electrical idle
ordered set
IDL
Junk
PX1011A/PX1012A
Junk
PCI Express stand-alone X1 PHY
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
002aac175
001aac785
13 of 32