參數(shù)資料
型號(hào)： LM81CIMT-31
廠商： National Semiconductor Corporation
英文描述： Serial Interface ACPI-Compatible Microprocessor System
中文描述： 串行接口ACPI的兼容微處理器系統(tǒng)
文件頁(yè)數(shù)： 24/32頁(yè)
文件大小： 412K
代理商： LM81CIMT-31
Functional Description
(Continued)
13.0 REGISTERS AND RAM
13.1 Address Register
The main register is the ADDRESS Register. The bit designations are as follows:
Bit
Name
Read/
Write
Write
Description
7-0
Address
Pointer
Address of RAM and Registers. See the tables below for detail.
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Address Pointer (Power On default 00h)
A4
A7
A6
A5
A3
A2
A1
A0
13.2 Address Pointer Index (A7–A0)
Registers and RAM
A6–A0 in
Hex
Power On Value of
Registers:
<
7:0
>
in Binary
0000 1000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
<
7:4
>
= 0101;
<
3:0
>
= VID3–VID0
<
7:2
>
=0010 11;
<
1:0
>
=(A1)(A0)
<
7:1
>
=1000 000;
<
0
>
=VID4
0000 0001
Notes
Configuration Register
Interrupt Status Register 1
Interrupt Status Register 2
Interrupt Mask Register 1
Interrupt Mask Register 2
CI Clear Register
VID/Fan Divisor Register
40h
41h
42h
43h
44h
46h
47h
Serial Bus Address Register
48h
VID4 Register
49h
Temperature Configuration
Register
Extended Mode Register 1
Extended Mode Register 2
Value RAM
Company ID
4Bh
4Ch
4Dh
19h–3Dh
3Eh
0100 0100
0000 0000
Address 19h default=1111 1111
This default designates National
Semiconductor.
Revisions of this device will start with 1 and
increment by one.
0000 0001
Stepping
3Fh
0000 0011
www.national.com
24
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