IT6506 PROGRAMMING GUIDE
ITE Tech. INC.
-21-
2013/11/12
22
RegNoAuxHSLT
7
0: Requires AUX CH handshake to sync.
1: Does not require AUX CH handshake to sync.
( setting value for DPCD 003h[6] )
R/W
0
RegMaxDwnSpread
6
0: No down spread
1: 0.5% down spread
( setting value for DPCD 003h[0] )
R/W
1
RegEnhFrameCap
5
0: Enhanced framing symbol sequence disabled.
1: Enhanced framing symbol sequence enabled.
( setting value for DPCD 002h[7] )
R/W
1
RegMaxLaneCnt
4:0 The maximum number of lanes that sink device can
support.
( setting value for DPCD 002h[4:0] )
R/W
00100
23
Reserved
7
------------------------------------------
RO
RegOUISupport
6
0: OUI not supported
1: OUI supported
R/W
0
Reg8B10BSupport
5
This bit set to 1 when DP receiver support the main
link channel coding specification as specified in
ANSI X3.230-1994, clause 11
R/W
1
RegFmtConv
4
0: this branch device does not have a format
conversion block
1: this downstream port has a format conversion
block
R/W
0
RegDSPortType
3:2 Indicates the downstream port type of port 0
00: Display Port
01: Analog VGA or analog video over DVI-I
10: DVI or HDMI
11: Others
R/W
0
RegDSPortPret
1
Set to 1 when this device has downstream port
R/W
00
RegNORP
0
Number of receiver ports
R/W
1
24
Reg1ATPrecPort
7
0: port 1 is used for main isochronous stream
1: port 1 is used for secondary isochronous stream
of main stream received in the preceding port
R/W
0
Reg1LEDIDPret
6
0: receiver port 1 has no local EDID
1: receiver port 1 has a local EDID
R/W
0
Reg0ATPrecPort
5
0: port 0 is used for main isochronous stream
1: port 0 is used for secondary isochronous stream
of main stream received in the preceding port
R/W
0
Reg0LEDIDPret
4
0: receiver port 0 has no local EDID
1: receiver port 0 has a local EDID
R/W
1
RegDSPortCnt
3:0 The number of downstream ports
R/W
0000
25
Reg0BufSize
7:0 Port 0’s buffer size = ( value+1 ) * 32 Bytes/lane
R/W
00000000
26
Reg1BufSize
7:0 Port 1’s buffer size = ( value+1 ) * 32 Bytes/lane
R/W
00000000
27
Reserved
7:4 ------------------------------------------
RO
RegDSPort0HPD
3
0: Downstream port is not HPD aware
1: Downstream port is HPD aware
R/W
0
RegDSPort0Type
2:0 000: DisplayPort 001: Analog VGA
010: DVI 011: HDMI
100: others without EDID support
101~111 : Reserved
R/W
000
2B
Reserved
7
------------------------------------------
RO
RegDSPortStChg
6
Set to 1 when any of the downstream ports has
changed status
R/W
0
RegSinkCnt
5:0 Total number of the sink devices within this device
and those conneted to the downstream ports of this
device
R/W
000000
2C
RegSinkOUI[7:0]
7:0 SINK_IEEE_OUI 7:0
R/W
00000000
2D
RegSinkOUI[15:8]
7:0 SINK_IEEE_OUI 15:8
R/W
00000000
2E
RegSinkOUI[23:16]
7:0 SINK_IEEE_OUI 23:16
R/W
00000000
2F
RegI2CMasterSel
7
0: I2C request feed from Aux Channel
1: I2C request feed from uP
R/W
0
RegDebugMode
6:5 00: normal mode
11: simulation only mode
R/W
00
Reg1usCntNo
4:0 Counter value for 1us
R/W
11011
30
RegBusHoldT
7:0 I2C Bus Hold Timer
R/W
00001000