STLC5466 STMicroelectronics, STLC5466 Datasheet - Page 74

• Manufacturer Part Number: STLC5466
• Description: RF Wireless Misc Multi-HDLC Sw Matrix
• Manufacturer: STMicroelectronics
• Type: Telecom ICr

Specifications of STLC5466

• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: LQFP-176
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

STLC5466
BOF
EOF
EOQ : End Of Queue
CRCC : CRC Corrupted
PRI
VII.3.2 - Bits written by the Tx DMAC only
CFT
ABT
UND
VII.3.3 - Transmit Buffer
Each transmit buffer is defined by its transmit descriptor.
The maximum size of the buffer is 2048 words (1 word=2 bytes)
74/130
NBT is even: x = NBT - 2
NBT is odd: x = NBT - 1
: Beginning Of Frame
: End Of Frame
: Priority Class 8 or 10
: Frame correctly transmitted
: Frame Transmitting Aborted
: Underrun
TBA + x;
BOF=1,the transmit buffer associated to this transmit descriptor contains the beginning of frame.
The DMA Controller will store automatically the current descriptor address in the Initialization
Block.
BOF=0, the DMA Controller will not store the current descriptor address in the Initialization
Block.
EOF = 1,the transmit buffer associated to this transmit descriptor contains the end of frame.
EOF = 0,the transmit buffer associated to this transmit descriptor does not contain the end of
frame
EOQ = 1, the DMAC stops immediately its transmission, generates an interrupt (HDLC = 1 in IR)
and waits a command from the HTCR (HDLC Transmit Command Register).
EOQ = 0, the DMAC continues.
CRCC = 1,at the end of this frame the CRC will be corrupted by the Tx HDLC Controller.
PRI = 1, if CSMA/CR is validated for this channel, the priority class is 8.
PRI = 0, if CSMA/CR is validated for this channel the priority class is 10.
(see Register CSMA)
CFT = 1, the Frame has been correctly transmitted.
CFT = 0, the Frame has not been correctly transmitted.
ABT = 1, the frame has been aborted by the microprocessor during the transmission.
ABT = 0, the microprocessor has not aborted the frame during the transmission.
UND = 1, the transmit FIFO has not been fed correctly during the transmission.
UND = 0, the transmit FIFO has been fed correctly during the transmission.
TBA
15
First Word to Transmit
Last Word to Transmit
0