參數(shù)資料
型號(hào): AM79C90PCTR
廠商: Advanced Micro Devices, Inc.
英文描述: CMOS Local Area Network Controller for Ethernet (C-LANCE)
中文描述: 的CMOS局域網(wǎng)控制器(丙應(yīng)聘以太網(wǎng))
文件頁(yè)數(shù): 43/62頁(yè)
文件大小: 437K
代理商: AM79C90PCTR
P R E L I M I N A R Y
AMD
43
Am79C90
SWITCHING WAVEFORMS
TCLK
TX
TENA
RENA
4
5
17881B-41
*During transmit, RENA input must be asserted (HIGH) and remain active-HIGH before TENA goes inactive (LOW). If RENA is
deasserted before TENA is deasserted, LCAR will be reported in TMD
3
after the transmission is completed by the C-LANCE.
8
9
2
3
1
7
*
6
Serial Link Timing (Transmit)
Drivers Enabled
O.D.
23
22
24
21
HOLD
HLDA
Bus
Master
Drivers
RESET
Note:
1.
RESET
s an asynchronous nput to the C-LANCE and s not part of the Bus Acquisition timing. When
RESET
s asserted, the
C-LANCE becomes a Bus Slave.
17881B-42
Bus Acquisition Timing
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