RCLXT16706FE Intel, RCLXT16706FE Datasheet - Page 256

• 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

Intel IXF6048 — 51/155/622/2488 Mbit/s SONET/SDH Cell/Packet Interface
11.3.9
11.3.10
256
15:12
15:12
11:0
11:0
Bit
Bit
Unused
XmtNFPWM[11:0]
Unused
XmtNEPWM [11:0]
T_NEPWM—Transmit Near Empty Programmable Watermark
T_NFPWM—Transmit Near Full Programmable Watermark ((0cc)42H)
((0cc)43H)
Name
Name
The transmit nearly full programmable watermark XmtNFPWM is
used to control the deassertion of the transmitter outputs TXPFA,
TXSFA, and TXFA_i (i = 0, 1, 2, 3) in POS and transparent (direct
mapping) modes only.
This value (XmtNFPWM) must always be less than or equal to the
transmit near empty watermark value (XmtNEPWM).
TXPFA, TXSFA, and TXFA_i (i = 0, 1, 2, 3) are deasserted when
the transmit FIFO is full or the available space (in 32-bit words) is
less than XmtNFPWM.
Channels 1, 2, and 3: The size of the FIFO is 512 words of 32 bits
(2048 bytes) and only XmtNFPWM[8:0] are used (9-bit watermark).
XmtNFPWM[11:9] are unused bits.
Channel 0: The size of the FIFO is 4096 words of 32 bits
(16 Kbytes) and XmtNFPWM[11:0] are used as a 12-bit
watermark.
The transmit near empty programmable watermark XmtNEPWM is
used to control the assertion of the transmitter outputs TXPFA,
TXSFA, and TXFA_i (i = 0, 1, 2, 3) in POS and transparent (direct
mapping) modes only.
This value (XmtNEPWM) must always be greater than the transmit
near full watermark value (XmtNFPWM).
TXPFA, TXSFA, and TXFA_i (i = 0, 1, 2, 3) are asserted when the
FIFO’s available space (in 32-bit words) is equal to or greater than
XmtNEPWM.
NOTE: There could be a dead space from when the transmit FIFO
Channels 1, 2, and 3: The size of the FIFO is 512 words of 32 bits
(2048 bytes) and only XmtNEPWM[8:0] are used (9-bit watermark).
XmtNEPWM[11:9] are unused bits.
Channel 0: The size of the FIFO is 4096 words of 32 bits
(16 Kbytes) and XmtNEPWM[11:0] are used as a 12-bit
watermark.
is emptied after a high watermark (near full) condition to a
low watermark (near empty) condition where the TXFA will
be equal to 0 - deasserted. This is because the TXFA is
set to 0 when it passes the high watermark value (near
full) and does not get reset to 1 (asserted) until it is
emptied to at least the low watermark value (near empty).
This could cause a see-saw like effect in the throughput.
Description
Description
Type
Type
R/W
R/W
Datasheet
Default
Default
1FH
FFH