參數(shù)資料
型號(hào)： AM79C973VCW
廠商： ADVANCED MICRO DEVICES INC
元件分類： 微控制器/微處理器
英文描述： PCnet⑩-FAST III Single-Chip 10/100 Mbps PCI Ethernet Controller with Integrated PHY
中文描述： 5 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP176
封裝： TQFP-176
文件頁(yè)數(shù)： 135/304頁(yè)
文件大小： 2092K
代理商： AM79C973VCW
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Am79C973/Am79C975
135
P R E L I M I N A R Y
10
STINTE
Software Timer Interrupt Enable.
If STINTE is set, the STINT bit
will be able to set the INTR bit.
Read/Write accessible always.
STINTE is set to 0 by H_RESET
and is not affected by S_RESET
or setting the STOP bit
9
MREINT
PHY Management Read Error In-
terrupt. The PHY Read Error in-
terrupt is set by the Am79C973/
Am79C975 controller to indicate
that the currently read register
from the PHY is invalid. The con-
tents of BCR34 are incorrect and
that the operation should be per-
formed again. The indication of
an incorrect read comes from the
internal PHY.
When MREINT is set to 1, INTA is
asserted if the enable bit MREIN-
TE is set to 1.
Read/Write accessible always.
MREINT is cleared by the host by
writing a 1. Writing a 0 has no ef-
fect. MREINT is cleared by
H_RESET and is not affected by
S_RESET or setting the STOP
bit.
8
MREINTE
PHY Management Read Error In-
terrupt Enable. If MREINTE is
set, the MREINT bit will be able to
set the INTR bit.
Read/Write accessible always.
MREINTE is set to 0 by
H_RESET and is not affected by
S_RESET or setting the STOP bit
7
MAPINT
PHY Management Auto-Poll In-
terrupt. The PHY Auto-Poll inter-
rupt is set by the Am79C973/
Am79C975 controller to indicate
that the currently read status
does not match the stored previ-
ous status indicating a change in
state for the internal PHY. A
change in the Auto-Poll Access
Method (BCR32, Bit 11) will reset
the shadow register and will not
cause an interrupt on the first ac-
cess from the Auto-Poll section.
Subsequent accesses will gener-
ate an interrupt if the shadow reg-
ister and the read register
produce differences.
When MAPINT is set to 1, INTA is
asserted if the enable bit MAP-
INTE is set to 1.
Read/Write accessible always.
MAPINT is cleared by the host by
writing a 1. Writing a 0 has no ef-
fect. MAPINT is cleared by
H_RESET and is not affected by
S_RESET or setting the STOP
bit.
6
MAPINTE
PHY Auto-Poll Interrupt Enable.
If MAPINTE is set, the MAPINT
bit will be able to set the INTR bit.
Read/Write accessible always.
MAPINTE is set to 0 by
H_RESET and is not affected by
S_RESET or setting the STOP bit
5
MCCINT
PHY Management Command
Complete Interrupt. The PHY
Management Command Com-
plete Interrupt is set by the
Am79C973/Am79C975 controller
when a read or write operation to
the internal PHY Data Port
(BCR34) is complete.
When MCCINT is set to 1, INTA
is asserted if the enable bit MC-
CINTE is set to 1.
Read/Write accessible always.
MCCINT is cleared by the host by
writing a 1. Writing a 0 has no ef-
fect. MCCINT is cleared by
H_RESET and is not affected by
S_RESET or setting the STOP
bit.
4
MCCINTE
PHY Management Command
Complete Interrupt Enable. If
MCCINTE is set to 1, the MC-
CINT bit will be able to set the
INTR bit when the host reads or
writes to the internal PHY Data
Port (BCR34) only. Internal PHY
Management Commands will not
generate an interrupt. For in-
stance Auto-Poll state machine
generated management frames
will not generate an interrupt
upon completion unless there is a
compare error which get reported
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