參數(shù)資料
型號: AM79C940
廠商: Advanced Micro Devices, Inc.
英文描述: Media Access Controller for Ethernet (MACE)
中文描述: 媒體訪問控制器(MACE發(fā)生以太網(wǎng))
文件頁數(shù): 73/122頁
文件大?。?/td> 914K
代理商: AM79C940
AMD
73
Am79C940
Loopback Functions
Loop [1–0]
00
01
10
Function
No Loopback
External Loopback
Internal Loopback, excludes
MENDEC
Internal Loopback, includes
MENDEC
11
External loopback allow the
MACE device to transmit to the
physical medium, using either
the AUI, 10BASE-T, DAI or GPSI
port,
dependent
PORTSEL [1–0] bits in the PLS
on
the
Configuration Control register.
Using the internal loopback test
will ensure that transmission
does not disturb the physical me-
dium and will prohibit frame re-
ception from the network. One
Internal loopback function in-
cludes the MENDEC in the loop.
Reserved. Read as zero. Always
write as zero.
Bit 0
RES
Reserved Test Register 1 (RTR1)
Reserved for AMD internal use only.
(REG ADDR 30)
Reserved Test Register 2 (RTR2)
Reserved for AMD internal use only.
(REG ADDR 31)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AM79C940_00 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:Media Access Controller for Ethernet (MACE⑩)
AM79C940-16/25 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
AM79C940-16JC 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LAN Node Controller
AM79C940-25JC 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LAN Node Controller
AM79C940AVC 制造商:AMD 功能描述:79C940 AMD'94 SMT N6E2A