參數(shù)資料
型號(hào)： AM79C930VCW
廠商： ADVANCED MICRO DEVICES INC
元件分類： 微控制器/微處理器
英文描述： PCnet-Mobile Single-Chip Wireless LAN Media Access Controller
中文描述： 2 CHANNEL(S), LOCAL AREA NETWORK CONTROLLER, PQFP144
封裝： TQFP-144
文件頁數(shù)： 101/161頁
文件大小： 691K
代理商： AM79C930VCW
P R E L I M I N A R Y
AMD
101
Am79C930
TIR24: TCR Index Register
This register is the TCR Index register. This register is
used as an address into indirect TAI register space. The
value in the TCR Index Register is used as an address
that points at one of 64 registers that are accessed
through the TCR Data Port.
Bit
Name
Reset Value
Description
7:6
Reserved
–
Reserved. Must be written as a 0. Reads of this bit produce
undefined data.
TCR Index value. The value in the TCR Index Register is used as an
address that points at one of 64 registers that are accessed through
the TCR Data Port.
5:0
TCRI[5:0]
00h
TIR25: Configuration Data Port
This register is the Configuration Data Port register.
This register is used as the data port allowing access
to 64 indirectly accessed registers. The register that is
accessed through the Configuration Data Port is deter-
mined by the current setting of the Configuration Index
Register.
Bit
Name
Reset Value
Description
7–0
CD[7:0]
–
Configuration Register Data. This register is used as the data port
allowing access to 64 indirectly accessed registers. The register
that is accessed through the Configuration Data Port is determined
by the current setting of the Configuration Index Register.
TIR26: Antenna Diversity and A/D Control
This register is the Antenna Diversity and A/D
Control register.
Bit
Name
Reset Value
Description
7
CHBSY
0
Channel Busy. The Am79C930 device will set this bit to a 1 when
the clear channel assessment logic determines that a carrier is pre-
sent. The Am79C930 device will set this bit to a 0 when the clear
channel assessment logic determines that a carrier is not present.
Writes by firmware will have no effect on this bit.
Antenna Selection Locked. The Am79C930 device will set
ANTLOK to a 1 when it has determined that criteria for antenna se-
lection have been passed. The Am79C930 device will set ANTLOK
to a 0 when the RXS bit of TIR16 is set 1.
Antenna Selection. This bit gives the current value of the ANTSLT
pin, whether determined by register bit programming or internal an-
tenna selection logic. This bit is read only.
Antenna Switch. If ANTSEN is set to 1, then the software may di-
rectly control the value of the ANTSLT and
ANTSLT
pins with this
bit. If ANTSEN is set to 0, then writes to this bit will have no effect on
the value of the ANTSLT and
ANTSLT
pins. Note: Antenna diversity
is disabled with the ANTSEN bit (bit 3 of TIR26).
Antenna Switch Enable. ANTSEN and ANTSLTLFN (TCR30[7])
are combined with the PCMCIA pin setting to determine the func-
tionality of the ANTSLT and
ANTSLT
pins.
The complete control of the function of the ANTSLT and
ANTSLT
pins are described in the Multi-Function Pinsection.
6
ANTLOK
0
5
ANTSLT
0
4
ANTS
0
3
ANTSEN
0
相關(guān)PDF資料
PDF描述
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)
AM79C960 PCnetTM-ISA Single-Chip Ethernet Controller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AM79C940 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:Media Access Controller for Ethernet (MACE)
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
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