ax88196 ASIX Electronics Corporation, ax88196 Datasheet - Page 23

• Manufacturer Part Number: ax88196
• Description: Non-pci 8/16-bit 10/100m Fast Ethernet Mac Controller With Embedded Memory
• Manufacturer: ASIX Electronics Corporation

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
Standby Mode
Byte Access
Word Access
ISA bus I/O Write function
Standby Mode
Byte Access
Word Access
5.2 80186 CPU bus type access functions.
80186 CPU bus I/O Read function
Standby Mode
Byte Access
Word Access
80186 CPU bus I/O Write function
Standby Mode
Byte Access
Word Access
Function Mode
Function Mode
Function Mode
Function Mode
AX88196
/CS
/CS
/CS
/CS
H
L
L
L
H
L
L
L
H
L
L
L
H
L
L
L
/BHE
/BHE
/BHE
/BHE
X
H
H
X
H
H
X
H
X
H
L
L
L
L
L
L
A0
A0
A0
A0
X
H
X
H
X
H
X
H
L
L
L
L
L
L
L
L
/IORD
/IORD
/IORD
/IORD
X
X
H
H
H
X
X
H
H
H
L
L
L
L
L
L
Local CPU BUS MAC Controller
23
/IOWR
/IOWR
/IOWR
/IOWR
X
H
H
H
X
X
H
H
H
X
L
L
L
L
L
L
ASIX ELECTRONICS CORPORATION
Not Valid
Not Valid
Not Valid
Odd-Byte
Odd-Byte
Odd-Byte
Odd-Byte
Odd-Byte
Odd-Byte
SD[15:8]
SD[15:8]
SD[15:8]
SD[15:8]
High-Z
High-Z
X
X
X
X
X
Even-Byte
Even-Byte
Even-Byte
Even-Byte
Even-Byte
Even-Byte
Even-Byte
Even-Byte
Not Valid
Odd-Byte
Odd-Byte
SD[7:0]
SD[7:0]
SD[7:0]
SD[7:0]
High-Z
High-Z
X
X
X