參數資料
型號: AX88190P
廠商: ASIX Electronics Corporation
英文描述: 10/100BASE PCMCIA Fast Ethernet MAC Controller
中文描述: 一個10/100Base的PCMCIA快速以太網MAC控制器
文件頁數: 7/41頁
文件大?。?/td> 465K
代理商: AX88190P
AX88190 PCMCIA Fast Ethernet MAC Controller
ASIX ELECTRONICS CORPORATION
7
2.0 Signal Description
The following terms describe the AX88190 pin-out:
All pin names with the “#” suffix are asserted low.
The following abbreviations are used in following Tables.
I
Input
Output
Input/Output
Open Drain
PU
PD
P
Pull Up
Pull Down
Power Pin
O
I/O
OD
2.1 PCMCIA Bus Interface Signals Group
SIGNAL
TYPE
I
PIN NO.
10 – 1
DESCRIPTION
SA[9:0]
System Address : Signals SA[9:0] are address bus input lines which
enable direct address of up to 64K memory and I/O spaces on card.
System Data Bus : Signals SD[15:0] constitute the bi-directional data
bus.
SD[15:0]
I/O
20 – 23,
25 – 38,
30 – 33,
35 – 38
12
IREQ#
O
Interrupt Request : IREQ# is asserted to indicate the host system that
the PC Card device requires host software service.
Wait : This signal is set low to insert wait states during Remote DMA
transfer.
Attribute Memory and I/O Space Select : When the REG# signal is
asserted, access is limited to Attribute Memory and to the I/O space.
I/O Read : The host asserts IORD# to read data from AX88190 I/O
space.
I/O Write : The host asserts IOWR# to write data into AX88190 I/O
space.
Output Enable : The OE# line is used to gate Memory Read data from
memory on PC Card
Write Enable : The WE# signal is used for strobing Memory Write
data into the memory on PC Card.
I/O is 16 Bit Port : The IOIS16# is asserted when the address at the
socket corresponds to an I/O address to which the card responds, and
the I/O port addressed is capable of 16-bit access.
Input Port Acknowledge : The signal is asserted when the AX88190 is
selected and can respond to and I/O read cycle at the address on the
address bus.
Card Enable : The CE1# enables even numbered address bytes and
CE2# enables odd numbered address bytes
Battery Voltage Detect 1 / Status Change
Battery Voltage Detect 2 / Audio speaker out
WAIT#
O
125
REG#
I
123
IORD#
I
15
IOWR#
I
14
OE#
I
16
WE#
I
13
IOIS16#
O
120
INPACK#
O
124
CE1#-CE2#
I
18, 17
BVD1_STSCHG#
BVD2_SPKR#
O
O
121
122
Tab - 1 PCMCIA bus interface signals group
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