參數(shù)資料
型號(hào)： DM9008
廠商： Electronic Theatre Controls, Inc.
英文描述： ISA/Plug & Play Super Ethernet Contoller
中文描述： 的ISA /插頭
文件頁數(shù)： 5/68頁
文件大?。?/td> 403K
代理商： DM9008
DM9008
ISA/Plug & Play Super Ethernet Contoller
Final
Version :DM9008-DS-F02
June 14, 2000
5
Pin Description
Pin No.
Symbol
I/O
Description
PC ISA BUS INTERFACE PINS
96 - 99
3 - 5
7
9
11 - 13
15 - 18
20, 22
SA0 - SA3
SA4 - SA6
SA7
SA8
SA9 - SA11
SA14 - SA17
SA18, SA19
I
SYSTEM ADDRESS: These signals are connected to the address
bus of the PC I/O slot. They are used to select the DM9008 I/O ports
or the boot ROM address
26 - 33
88 - 81
SD0 - SD7
SD8 - SD15
I/O, Z
SYSTEM DATA: These signals are connected to the data bus of the
PC I/O bus slot. They are used to transfer data between the PC and
the DM9008
2
BALE
I
ADDRESS LATCH ENABLE: PC ISA bus BALE signal; used only to
define the timing of IOCHRDY in Remote DMA
This pin is not used if the value of biteA of CRB is 0, and tie to high to
prevent floating.
14
SYSCLK
I
SYSTEM CLOCK: PC ISA bus system clock
This pin is not used if the value of biteA of CRB is 0, and tie to high to
prevent floating.
19
IOR
I
I/O READ: An active low signal used to read data from the DM9008
21
IOW
I
I/O WRITE: An active low signal used to write data to the DM9008
23
SMEMR
I
MEMORY READ: An active low signal used to read boot ROM data
35
RST
I
RESET: An active high signal used to power-on reset the DM9008
24
AEN
I
ADDRESS ENABLE: This is an active low signal used to enable the
system address for the DM9008
25
IOCHRDY
O I, Z
I/O CHANNEL READY: The DM9008 sets this signal low to insert
wait states into the PC ISA bus
89
MEMW
I
MEMORY WRITE: PC ISA bus memory write signal
This pin is not used if the value of biteA of CRB is 0, and tie to high to
prevent floating.
90
MEMR
I
MEMORY READ: PC ISA bus memory read signal
This pin is not used if the value of biteA of CRB is 0, and tie to high to
prevent floating.
95
IO16
O, Z
16-BIT I/O: This signal goes low when the data transfer between the
DM9008 and the PC ISA bus is word wide
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