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AX88140AP Datasheet(PDF) 20 Page - ASIX Electronics Corporation

Part # AX88140AP
Description  Fast Ethernet MAC Controller
PDF  46 Pages
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Manufacturer  ASIX [ASIX Electronics Corporation]
Direct Link  http://www.asix.com.tw
Logo ASIX - ASIX Electronics Corporation

AX88140AP Datasheet(HTML) 20 Page - ASIX Electronics Corporation

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AX88140A
PRELIMINARY
ASIX ELECTRONICS CORPORATION
20
4.0 Registers Operation
1.
The REGs are quad-word aligned, 32-bits long, and must be accessed using long-word
instruction with quad-word aligned addresses only.
2.
Reserved bits should be written with 0.; Reserved bits are UNPREDICTABLE on read
access.
3.
Retries on second data transactions occur in response to burst accesses.
4.1 Registers Mapping
REGISTER
MEANING
OFFSET FROM REG BASE ADDRESS
(CBIO,CBMA)
REG0
BUS MODE
00H
REG1
TRANSMIT POLL DEMAND
08H
REG2
RECEIVE POLL DEMAND
10H
REG3
RECEIVE LIST BASE ADDRESS
18H
REG4
TRANSMIT LIST BASE ADDRESS
20H
REG5
STATUS
28H
REG6
OPERATION MODE
30H
REG7
INTERRUPT ENABLE
38H
REG8
MISSED FRAME AND OVERFLOW COUNTER
40H
REG9
SERIAL ROM, AND MII MANAGEMENT
48H
REG10
-
50H
REG11
GENERAL-PURPOSE TIMER
58H
REG12
GENERAL-PURPOSE PORT
60H
REG13
FILTERING BUFFER INDEX
68H
REG14
FILTERING BUFFER DATA
70H
Tab - 14 Command and Status Register Mapping



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