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參數(shù)資料
| 型號(hào)： | AM79C930 |
| 廠商： | Advanced Micro Devices, Inc. |
| 英文描述： | PCnet-Mobile Single-Chip Wireless LAN Media Access Controller |
| 中文描述： | PCnet -移動(dòng)單芯片無(wú)線局域網(wǎng)媒體接入控制器 |
| 文件頁(yè)數(shù)： | 114/161頁(yè) |
| 文件大?。?/td> | 691K |
| 代理商： | AM79C930 |
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AMD
P R E L I M I N A R Y
114
Am79C930
In addition to these bits, the USER6/IRQ5 pin may be used to pro-
duce interrupts to the 80188 embedded controller. This capability is
controlled by the ENXSDF bit of TCR28 and the SDFU bit of TIR5
and operates independently of the bits in the table above.
USER5 Enable. USER5EN, the USER5FN bit of TCR15, the ISA
PnP interrupt level select register, the ISA PnP interrupt type regis-
ter, and the PCMCIA pin are used to determine the function of the
USER5IRQ4 pin.
The control of the function of the USER5/IRQ4 pin is described in
the Multi-Function Pinsection.
In addition to these bits, the USER5/IRQ4 pin may be used to pro-
duce interrupts to the 80188 embedded controller. This capability is
controlled by the ENXCHBSY bit of TCR28 and the CHBSYCU bit
of TIR5 and operates independently of the bits in the table above.
Activity LED Enable. This bit can be used to control the ACT LED
output. The control of the function of the ACT pin is described in the
Multi-Function Pinsection.
STSCHG
Function. This bit is used to determine the function of the
STSCHG
pin. When this bit is set to a 1, then the value of the
STSCHG
pin is equal to the NAND result of the MIR9 STSCHGD bit
value and the PCMCIA CCSR WAKEUP bit value. When this bit is
set to a 0, then the value of the STSCHG pin is equal to the inver-
sion of the MIR9 STSCHGD bit value. THIS FUNCTION IS ONLY
AVAILABLE IN PCMCIA MODE.
The complete control of the function of the STSCHG/BALE pin is
described in the Multi-Function Pinsection.
2
USER5EN
0
1
ACTEN
1
0
STSCHGFN
1
TCR16: Baud Detect Start
This register is the Baud Detect Start register. This reg-
ister is used to program the start time for the Baud de-
tection circuit. The start time is compared against the
current value of the antenna diversity timer and the baud
detect test begins when the compare is TRUE. Note that
the antenna diversity timer is a count down timer with an
initial value specified in TCR4. If the automatic antenna
diversity logic is disabled, then the antenna diversity
timer continues to run and provide a reference point for
the start of the Baud Detect Start value.
CONFIGURATION REGISTER INDEX:
10h
Bit
Name
Reset Value
Description
7–6
Reserved
–
Reserved. Must be written as a 0. Reads of this bit produce
undefined data.
Baud Detect Start. The value in this register is used to determine
when the baud detection circuit will begin examining incoming RXD
data. The baud detection begins when the antenna diversity timer
of TCR4 reaches the value specified here as BDS[5:0]. The an-
tenna diversity timer is a count down timer operating at a resolution
equal to 20 times the CLKIN period when the CLKGT20 bit of MIR9
is set to 0 and a resolution equal to 40 times the CLKIN period when
the CLKGT20 bit of MIR9 is set to 1. For a 1 Mbs data rate with
CLKIN = 20 MHz and CLKGT20 = 0, the resolution is 1
μ
.
5–0
BDS[5:0]
00h
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AM79C930VCW | PCnet-Mobile Single-Chip Wireless LAN Media Access Controller |
| AM79C940VCW | Media Access Controller for Ethernet (MACE) |
| AM79C940 | Media Access Controller for Ethernet (MACE) |
| AM79C940JCW | Media Access Controller for Ethernet (MACE) |
| AM79C940KCW | Media Access Controller for Ethernet (MACE) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AM79C930EVAL-HW | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Am79C930EVAL-HW - PCnet-Mobile Evaluation Kit |
| AM79C930VC/W | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:PCnet-Mobile Single-Chip Wireless LAN Media Access Controller |
| AM79C930VCW | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:PCnet-Mobile Single-Chip Wireless LAN Media Access Controller |
| AM79C940 | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:Media Access Controller for Ethernet (MACE) |
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