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參數(shù)資料
| 型號： | MX98905B |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | The MX98905 is designed for easy implementation of CSMA/CD local area networks, |
| 中文描述： | 該MX98905是專為易于實現(xiàn)的多址/光盤局域網(wǎng)， |
| 文件頁數(shù)： | 55/86頁 |
| 文件大小： | 352K |
| 代理商： | MX98905B |
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55
P/N: PM0365
REV. 1.3, NOV 20 ,1995
MX98905B
9. DATA CONFIGURATION REGISTER (DCR) 0EH (WRITE)
(Continued)
SYMBOL
BIT
DESCRIPTION
LS
D3
LOOPBACK SELECT
0: Loopback mode select. Bits LB0, LB1 o f the TCR must be programmed for
loopback operation.
1: Normal Operation. Ignore the values of LB1 and LB0 of TCR.
ARM
D4
AUTO-INITIALIZE REMOTE
0: Send Command not executed, all packets removed from Buffer Ring under
program control.
1: Send Command executed, Remote DMA auto-initialize to remove packets from
Buffer Ring
Note: Send Command cannot be used with 68000-type processors and should be
issued right after reception of packet is completed.
FT0, FT1
D5,D6
FIFO THRESHOLD SELECT
: Encoded FIFO threshold; establishes point at which
bus is requested when filling or emptying the FIFO. During reception, the FIFO
threshold indicates the number of bytes (or words) the FIFO has filled serially from
the network.
During transmission, the FIFO threshold indicates the number of bytes (or words )
the FIFO has filled from the Local DMA. Thus, the transmission threshold is 16 bytes
less than the received threshold.
Note: FIFO threshold setting determines the Local DMA burst length.
RECEIVE THRESHOLDS
FT1
0
0
1
1
FT0
0
1
0
1
WORD WIDE
1 word
2 words
4 words
6 words
BYTE WIDE
2 bytes
4 bytes
8 bytes
12 bytes
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MX98905B | IEEE 802.3, 10BASE5, 10BASE2 Controller and Integrated Bus Interface(IEEE 802.3, 10BASE5, 10BASE2控制器和集成總線接口) |
| MX98905BFC | The MX98905 is designed for easy implementation of CSMA/CD local area networks, |
| MXA2312A | Low Cost, +2,-2 g Dual Axis Accelerometer with Analog Outputs |
| MXA2500K | Ultra Low Cost, 【1.0 g Dual Axis Accelerometer with Absolute Outputs |
| MXA2500KV | Ultra Low Cost, 【1.0 g Dual Axis Accelerometer with Absolute Outputs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MX98905BFC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:The MX98905 is designed for easy implementation of CSMA/CD local area networks, |
| MX98L715BEC | 制造商:MCNIX 制造商全稱:Macronix International 功能描述:3.3V SINGLE CHIP FAST ETHERNET NIC CONTROLLER |
| MX-9C | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MX |
| MX-9G | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MX |
| MX9G100B | 制造商:Panasonic Industrial Company 功能描述:90x90 gearhead for 40W motor,100:1 |
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