參數(shù)資料
型號(hào)： PI7C7300DNAE
廠商： Pericom
文件頁(yè)數(shù)： 17/107頁(yè)
文件大?。?/td> 0K
描述： IC PCI-PCI BRIDGE 3PORT 272-BGA
標(biāo)準(zhǔn)包裝： 40
系列： *
應(yīng)用： *
接口： *
電源電壓： *
封裝/外殼： 272-BBGA
供應(yīng)商設(shè)備封裝： 272-PBGA（27x27）
包裝： 管件
安裝類(lèi)型： 表面貼裝
PI7C7300D
3-PORT PCI-TO-PCI BRIDGE
Page 17 of 107
Pericom Semiconductor
November 2005 - Revision 1.01
Name
Pin #
Type
Description
S_CFN#
Y2
PIU
Secondary Bus Central Function Control Pin. When
tied LOW, it enables the internal arbiter. When tied
HIGH, an external arbiter must be used. S1_REQ#[0]
or S2_REQ#[0] is reconfigured to be the secondary bus
grant input, and S1_GNT#[0] or S2_GNT#[0] is
reconfigured to be the secondary bus request output.
3.4
CLOCK SIGNALS
Name
Pin #
Type
Description
P_CLK
V6
PI
Primary Clock Input. Provides timing for all
transactions on the primary interface.
S1_CLKOUT
[7:0]
A11, C12, A13,
B14, B15, C16,
A18, A19
PTS
Secondary Clock Output. Provides secondary 1
clocks phase synchronous with the P_CLK.
S2_CLKOUT
[7:0]
T3, T1, P3, N3,
M4, L3, L2, J1
PTS
Secondary Clock Output. Provides secondary 2
clocks phase synchronous with the P_CLK.
3.5
MISCELLANEOUS SIGNALS
Name
Pin #
Type
Description
BY_PASS
Y4
PI
Reserved. Reserved for future use. Must be tied
HIGH.
PLL_TM
Y3
PI
Reserved. Reserved for future use. Must be tied
LOW.
S_CLKIN
V5
PI
Reserved. Reserved for future use. Must be tied
LOW.
SCAN_TM#
V4
PI
Full-Scan Test Mode Enable (Active LOW).
Connect HIGH for normal operation.
When SCAN_TM# is active, the ten scan chains will be
enabled. The scan clock is P_CLK. The scan input and
outputs are as follows:
S1_REQ[6], S1_REQ[5], S1_REQ[4], S1_REQ[3],
S1_REQ[2], S2_REQ#[6], S2_REQ#[5], S2_REQ#[4],
S2_REQ#[3], S2_REQ#[2], and S1_GNT#[6],
S1_GNT#[5], S1_GNT#[4], S1_GNT#[3],
S1_GNT#[2], S2_GNT#[6], S2_GNT#[5],
S2_GNT#[4], S2_GNT#[3], S2_GNT#[2]
SCAN_EN
U5
PID
Full-Scan Enable Control. SCAN_EN should be tied
LOW in normal mode. When SCAN_EN is LOW, full-
scan is in shift operation if SCAN_TM# is active.
When SCAN_EN is HIGH, full-scan is in parallel
operation if SCAN_TM# is active.
3.6
COMPACT PCI HOT-SWAP SIGNALS
Name
Pin #
Type
Description
LOO
U1
PO
Hot Swap LED. The output of this pin lights a blue
LED to indicate insertion and removal ready status. If
HS_EN is LOW, pin is S2_GNT#[7].
HS_SW#
T2
PI
Hot Swap Switch. When driven LOW, this signal
indicates that the board ejector handle indicates an
insertion or impending extraction of a board. If HS_EN
is LOW, pin is S2_REQ#[7].
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