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參數資料
| 型號： | W83628F |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 總線控制器 |
| 英文描述： | PCI TO ISA BRIDGE SET |
| 中文描述： | ISA BUS CONTROLLER, PQFP128 |
| 封裝： | PLASTIC, QFP-128 |
| 文件頁數： | 7/27頁 |
| 文件大小： | 271K |
| 代理商： | W83628F |
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PCI TO ISA BRIDGE SET
W83628F & W83629D
PRELIMINARY
Publication Release Date: Jan 1999
- 7 -
Revision 0.32
1.1.1 PCI Interface, continued
SYMBOL
FRAME#
PIN
40
I/O
FUNCTION
I/O24tp3
Frame Signal
. FRAME# is driven by the current PCI bus master
to indicate the beginning and duration of an access.
Initialization Device Select.
IDSEL is used as a chip select
during configuration read and write transactions. This signal
should be externally tied to one of the upper 21 address signals.
Bus Stop#.
STOP# indicates the current target is requesting the
master to stop the current PCI bus transaction.
Initiator Ready.
IRDY# indicates the initiating agent ability to
complete the current data phase of the PCI bus transaction.
Target Ready.
TRDY# indicates the target agent
s
ability to
complete the current data phase of the PCI bus transaction.
Device Select.
W83628F drives DEVSEL# to indicate that it is
the target of the current PCI bus transaction. W83628F uses
subtractive decoding and the NOGO protocol to claim PCI
transactions.
System Error.
SERR# can be pulsed active by any PCI agent
that detects a system error condition.
Parity Signal.
W83628F generates even parity across AD[31:0]
and C/BE[3:0]#.
PCI Reset.
W83628F receives PCIRST# as a reset from the PCI
Bus.
IDSEL
29
INt
STOP#
39
I/O12tp3
IRDY#
41
I/O12tp3
TRDY#
42
I/O12tp3
DEVSEL#
43
I/O12tp3
SERR#
45
OD12
PAR
49
I/O12tp3
PCIRST#
71
INt
1.1.2 Control Logic and Handshaking Signals
SYMBOL
HS[2:0]
PIN
I/O
I/O12
FUNCTION
112-
114
Handshaking Signals.
HS[2:0] connected to W83629D for PCI
to ISA SET handshaking signals.
HS1 is handshaking Signal 1, this pin weak pulled-down
during PCIRST# is asserted, and apply a pull-up
resistor(4.7Kohm) to this pin disables ISA bridge
subtraction decoder.
ISOLATE#
72
INt
Isolation Control Input. Isolate#
is an active low signal by user
programming to control the W83628F all output signals to
Isolation and Tri-state.
NOGO,
This signal indicates which master initiated the current
transaction and also indicates whether or not the current bus
cycle is targeted for the ISA bus. This signal is a point-to-point
connection between PCI HOST Bridge and W83628F.
NOGO
76
INt
相關PDF資料 |
PDF描述 |
|---|---|
| W83637HF | LPC I/O |
| W83637HF-AW | LPC I/O |
| W83697HF | WINBOND I/O |
| W83697 | WINBOND I/O |
| W83697F | WINBOND I/O |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W83629AG | 制造商:Nuvoton Technology Corp 功能描述:PCI to ISA Bus Conversion 48-Pin LQFP |
| W83629D | 制造商:WINBOND 制造商全稱:Winbond 功能描述:PCI TO ISA BRIDGE SET |
| W83637HF | 制造商:WINBOND 制造商全稱:Winbond 功能描述:LPC I/O |
| W83637HF_06 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:LPC I/O |
| W83637HF-AW | 制造商:WINBOND 制造商全稱:Winbond 功能描述:LPC I/O |
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