RCLXT16706FE Intel, RCLXT16706FE Datasheet - Page 321

• Manufacturer Part Number: RCLXT16706FE
• Manufacturer: Intel

Specifications of RCLXT16706FE

• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 2.97V
• Operating Supply Voltage (max): 3.63V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Lead Free Status / Rohs Status: Not Compliant

11.14.2
11.14.2.1
Datasheet
12:10
Bit
7:0
15
14
13
9
8
Unused
XmtIPGRelEn
XmtIPGRelCnf
XmtIPGRel[2:0]
XmtIPGAbsEn
XmtIPGAbsCnf
XmtIPGAbs[7:0]
T_IPGCTRL—Transmit Interpacket Gap Control (Tx Flow Control)
((1cc)41H)
Intel IXF6048 controls the interpacket gap (the number of Flag characters transmitted between
consecutive HDLC frames) using two different methods. The interpacket gap is generated
according to these rules:
XmtIPGRelEn = '1' (Method 1)
XmtIPGRelEn = '1' enables the first method. This method limits the frame transmission rate by
inserting a number of Flag characters (between two consecutive frames) proportional to the length
of the transmitted frames. Every time a frame is transmitted, the HDLC controller transmits a
number of Flag characters proportional to the length of the frame. The number of transmitted Flag
characters is calculated by multiplying (XmtIPGRelCnf = '1') or by dividing (XmtIPGRelCnf = '0')
Name
•
•
If any method is enabled, the minimum interpacket gap is one Flag.
If one or both methods are enabled, the interpacket gap is max{1, m1, m2}, where m1 is the
number of Flag characters calculated by the first method and m2 is the number of Flag
characters calculated by the second method.
51/155/622/2488 Mbit/s SONET/SDH Cell/Packet Interface — Intel IXF6048
XmtIPGRelEn enables the insertion of interframe filling Flag
characters to reduce the HDLC transmit rate:
'0' = The transmit HDLC controller operates normally.
'1' = The number of Flag characters inserted after an HDLC frame
is proportional to the “length of the frame” (L), modified as indicated
by XmtIPGRelCnf and XmtIPGRel[2:0] (see
29).
XmtIPGRelCnf configures how XmtIPGRel[2:0] are used to
calculate the number of Flag characters.
'0' = Divide length by XmtIPGRel[2:0] value.
'1' = Multiply length by XmtIPGRel[2:0] value.
XmtIPGRel[2:0] configures the number of Flag characters to insert
between consecutive HDLC frames as a function of the transmitted
frame length (see
XmtIPGAbsEn enables the insertion of interframe filling Flag
characters to ensure a minimum number of Flag characters
between consecutive HDLC frames:
'0' = The transmit HDLC controller operates normally.
'1' = The number of Flag characters inserted after an HDLC frame
is a constant value indicated by XmtIPGAbsCnf and
XmtIPGAbs[7:0] (see
This is the multiplier value used on the XmtIPGAbs[7:0] field:
If 0, the value of XmtIPGAbs[7:0] is multiplied by 1.
If 1, the value of XmtIPGAbs[7:0] is multiplied by 256.
XmtIPGAbs[7:0] configures the number of Flag characters to insert
between consecutive HDLC frames (see
Table 28
Table 30
Description
and
and
Table
Table
29).
Table 30
31).
Table 28
and
and
Table
Table
31).
Type
R/W
R/W
R/W
R/W
R/W
R/W
Default
01H
'01'
'0'
'0'
'0'
'0'
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