參數(shù)資料
型號： PLI9080
廠商： Electronic Theatre Controls, Inc.
英文描述： PCI I/O ACCELERATOR
中文描述： 的PCI I / O加速器
文件頁數(shù)： 19/133頁
文件大?。?/td> 883K
代理商： PLI9080
SECTION 3
PCI 9080
FUNCTIONAL DESCRIPTION
PLX Technology, Inc., 1997
Page 11
Version 0.93
3.3.1 Short EEPROM Load
The registers listed in Table 3-1 are loaded from serial
EEPROM after reset is de-asserted if the SHORT# pin
is low. The serial EEPROM is organized in words (16
bit). PCI 9080 first loads MSW (Most Significant Word
(bits [31:16])), starting from the most significant bit (bit
31). The PCI 9080 then loads LSW (Least Significant
Word (bits [15:0])), starting again from the most
significant bit (bit 15). Therefore, the PCI 9080 will load
Device ID, Vendor ID, class code, and so forth. The five
32-bit words are stored sequentially in the serial
EEPROM.
Table 3-1. Short EEPROM Load Registers
EEPROM
Offset
EEPROM
Value
Description
0
9080
Device ID
2
10B5
Vendor ID
4
0680
Class Code
6
0002
Class Code, Revision
8
0000
Maximum Latency, Minimum Grant
A
0100
Interrupt Pin, Interrupt Line Routing
C
xxxx
MSW of Mailbox 0 (User Defined)
E
xxxx
LSW of Mailbox 0 (User Defined)
10
xxxx
MSW of Mailbox 1 (User Defined)
12
xxxx
LSW of Mailbox 1 (User Defined)
3.3.2 Long EEPROM Load
The registers listed in Table 3-2 are loaded from serial
EEPROM after reset is de-asserted if the SHORT# pin
is high. The serial EEPROM is organized in words (16
bit). PCI 9080 first loads MSW (Most Significant Word
(bits [31:16])), starting from the most significant bit (bit
31). The PCI 9080 then loads LSW (Least Significant
Word (bits [15:0])), starting again from the most
significant bit (bit 15). Therefore, the PCI 9080 will load
Device ID, Vendor ID, class code, and so forth.
The serial EEPROM value can be entered into a DATA
I/O programmer in the order shown below. The value
shown are examples and must be modified for each
particular application. The 34 16-bit words listed in the
table are stored sequentially in the serial EEPROM.
Note: The internal register values and the serial
EEPROM values can be read or written using
PLXMON.EXE or PLXMON95.EXE, provided by PLX
Technology.
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