參數(shù)資料
型號(hào)： TC3299A
廠商： Electronic Theatre Controls, Inc.
英文描述： Ethernet PCMCIA Controller + COMBO Transceiver
中文描述： PCMCIA控制器組合以太網(wǎng)收發(fā)器
文件頁(yè)數(shù)： 16/26頁(yè)
文件大?。?/td> 1301K
代理商： TC3299A
TC3299A
Preliminary Data Sheet
7
-
6
5
4
3
LS
2
-
1
-
0
FT1
FT0
ARM
WTS
Bit
D0
Symbol
WTS
Description
Word Transfer Select
0: Selects byte-wide DMA transfers.
1: Selects word-wide DMA transfers
Note: when word-wide mode is selected, up to 32k words are addressable;
A0 remains low.
Reserved
Reserved
Loopback Select
0: Loopback mode selected. Bits D1,D2 of the TCR must also be
programmed for Loopback mode selected.
1: Normal Operation.
Auto-Initialize Remote
0: Send Command not executed, all packets removed from Buffer Ring
under program control.
1: Send Command executed, Remote DMA auto-initialized to remove
packets from Buffer Ring.
FIFO Threshold Select: Encoded FIFO threshold. During reception, the
FIFO threshold indicates the number of bytes (or words) the FIFO has filled
serially from the network before the FIFO is emptied onto memory bus.
RECEIVE THRESHOLDS
FT1 FT0 Word Wide Byte Wide
0 0 1 Word 2 Bytes
0 1 2 Word 4 Bytes
1 0 4 Word 8 Bytes
1 1 6 Word 12 Bytes
During transmission, the FIFO threshold indicates the number of bytes
(of words) the FIFO has filled from the Local DMA before being
transferred to the memory. Thus, the transmission threshold is 16 bytes
less the receive threshold.
D1
D2
D3
-
-
LS
D4
ARM
D5,D6
FT0,FT1
Transmit configuration Register (TCR)
The transmit configuration establishes the actions of the transmitter section of the EPCC during
transmission of a acket on the network, LB1 and LB0 power up as 0.
7
6
5
4
-
-
-
OFST
Bit
Symbol
D0
CRC
Inhibit CRC
0: CRC appended by transmitter
1: CRC inhibited by transmitter
D1,D2
LB0,LB1
Encoded Loopback Control: These encoded configuration bits set the
type of loopback that should be performed. Notethat loopback in mode 2
sets the LPBK pin high, this places the TC3096 in loopback mode and
that D3 of the DCR must be set to zero for loopback operation.
3
2
1
0
ATD
LB1
LB0
CRC
Description
Confidential.
Copyright
2003, IC Plus Corp.
16/26
August 27, 20003
TC3299A-DS-R30
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