參數(shù)資料
型號(hào)： SII0680A
元件分類： 存儲(chǔ)控制器/管理單元
英文描述： IDE COMPATIBLE, CD ROM CONTROLLER, PQFP144
封裝： LQFP-144
文件頁數(shù)： 3/34頁
文件大?。?/td> 280K
代理商： SII0680A
SiI 0680A Data Sheet Revision 1.31-1
11
Subject to change without notice
1.10 PCI Configuration Space
This section describes how the SiI 0680A implements the required PCI configuration register space. The intent is to
provide an appropriate set of configuration registers that satisfy the needs of current and anticipated system configuration
mechanisms, without specifying th ose mechanisms or otherwise placing constraints on their use. These registers allow
for:
Full device relocation (including interrupt binding)
Installation, configuration, and booting without user interventions
System address map construction by device-independent software
Figure 1-2: Address Lines During Configuration Cycle
SiI 0680A only responds to Type 0 configuration cycles. Type 1 cycles, which pass a configuration request on to another
PCI bus, are ignored.
The address phase during a SiI 0680A configuration cycle indicates the function number and register number being
addressed which can be decoded by observing the status of the address lines AD[31:0].
The value of the signal lines AD[7:2] during the address phase of configuration cycles selects the register of the
configuration space to access. Valid values are between 0 and 15, inclusive. Accessing registers outside this range
results in an all-0s value being returned on reads, and no action being taken on writes.
The Class Code register contains the Class Code, Sub-Class Code, and Register-Level Programming Interface registers.
All writable bits in the configuration space are reset to 0 by the hardware reset, PCI RESET (RST#) asserted. After reset, SiI
0680A is disabled and will only respond to PCI configuration write and PCI configuration read cycles.
1.11 Deviations from the Specification
The SiI 0680A product has been developed and tested to the specification listed in this document. As a result of testing and
customer feedback, we may become aware of deviations to the specification that could affect the component's operation.
To ensure awareness of these deviations by anyone considering the use of the SiI 0680A, we will include them in this
document.
2. Electrical Characteristics
2.1 Device Electrical Characteristics
Specifications are for temperature range, 0
oC to 70oC, unless otherwise specified.
Symbol
Parameter
Ratings
Unit
VDDH
Supply Voltage
3.6
V
VIN
Input Voltage
-0.3 ~ 6.0
V
IOUT
DC Output Current
16
mA
31
11 10
8 7
2
1
0
Bit
Number
Don’t Care
Bit
Number
3-Bit
Function
Number
6-Bit
Register
Number
2-Bit
Type
Number
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