參數(shù)資料
型號(hào): AX88196
廠商: Electronic Theatre Controls, Inc.
英文描述: 10/100BASE 3-in-1 Local CPU Bus Fast Ethernet Controller with Embedded SRAM
中文描述: 一個(gè)10/100Base 3合1本地CPU總線快速以太網(wǎng)控制器與嵌入式靜態(tài)存儲(chǔ)器
文件頁數(shù): 23/42頁
文件大?。?/td> 594K
代理商: AX88196
AX88196 Local CPU BUS MAC Controller
ASIX ELECTRONICS CORPORATION
23
5.0 CPU I/O Read and Write Functions
The AX88196 supports four kinds of CPU/BUS types access function, including ISA, 80186, MC68000 and MCS-
51. These Access methods are described as the following sections.
5.1 ISA bus type access functions.
ISA bus I/O Read function
Function Mode
Standby Mode
Byte Access
/CS
H
L
L
L
/BHE
X
H
H
L
A0
X
L
H
L
/IORD
X
L
L
L
/IOWR
X
H
H
H
SD[15:8]
High-Z
Not Valid
Not Valid
Odd-Byte
SD[7:0]
High-Z
Even-Byte
Odd-Byte
Even-Byte
Word Access
ISA bus I/O Write function
Function Mode
Standby Mode
Byte Access
/CS
H
L
L
L
/BHE
X
H
H
L
A0
X
L
H
L
/IORD
X
H
H
H
/IOWR
X
L
L
L
SD[15:8]
X
X
X
Odd-Byte
SD[7:0]
X
Even-Byte
Odd-Byte
Even-Byte
Word Access
5.2 80186 CPU bus type access functions.
80186 CPU bus I/O Read function
Function Mode
Standby Mode
Byte Access
/CS
H
L
L
L
/BHE
X
H
L
L
A0
X
L
H
L
/IORD
X
L
L
L
/IOWR
X
H
H
H
SD[15:8]
High-Z
Not Valid
Odd-Byte
Odd-Byte
SD[7:0]
High-Z
Even-Byte
Not Valid
Even-Byte
Word Access
80186 CPU bus I/O Write function
Function Mode
Standby Mode
Byte Access
/CS
H
L
L
L
/BHE
X
H
L
L
A0
X
L
H
L
/IORD
X
H
H
H
/IOWR
X
L
L
L
SD[15:8]
X
X
Odd-Byte
Odd-Byte
SD[7:0]
X
Even-Byte
X
Even-Byte
Word Access
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