參數(shù)資料
型號: MT8LLN22NCNE
元件分類: 總線控制器
英文描述: PCI BUS CONTROLLER, PBGA316
封裝: 27 X 27 MM, PLASTIC, BGA-316
文件頁數(shù): 129/145頁
文件大?。?/td> 2285K
代理商: MT8LLN22NCNE
Coppertail Product Specification
MT8LLN22NCNE.fm – Rev. 1, Pub. 2/02
84
2002, Micron Technology Inc.
PRELIMINARY
MT8LLN22NCNE
COPPERTAIL
RTC Extended RAM Index Register
RTC Extended RAM Data Register
RTC Indexed Registers.
The RTC internal registers and RAM are organized
into two banks called the standard RAM and the
extended RAM for a total of 256 bytes of Non-Volatile
memory. Each bank is accessed using an index/data
register pair. The standard bank contains specific reg-
isters, and a user defined area. The extended bank is all
user defined. The RTC indexed RAM registers are sum-
marized in Table 12.
ADDRESS: 72h
BITS
DESCRIPTION
PROPERTIES
RESET
7:0
RTC Extended RAM Index Address. Index to the upper 128 bytes of the
non-volatile CMOS RAM.
R/W
0
ADDRESS: 72h
BITS
DESCRIPTION
PROPERTIES
RESET
7:0
RTC Data from the upper 128 bytes of non-volatile CMOS RAM.
R/W
0
Table 12
RTC Indexed RAM Registers
RTC BANK
INDEX
NAME
Standard
00h
Seconds
Standard
01h
Seconds Alarm
Standard
02h
Minutes
Standard
03h
Minutes Alarm
Standard
04h
Hours
Standard
05h
Hours Alarm
Standard
06h
Day of week
Standard
07h
Day of month
Standard
08h
Month
Standard
09h
Year
Standard
0Ah
Register A
Standard
0Bh
Register B
Standard
0Ch
Register C
Standard
0Dh
Register D
Standard
0Eh-7Ch
User RAM
Standard
7Dh
Day of Month Alarm
Standard
7Eh
Month Alarm
Standard
7Fh
Century
Extended
00h-7Fh
User RAM
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