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): 128/145頁
文件大小: 2285K
代理商: MT8LLN22NCNE
Coppertail Product Specification
MT8LLN22NCNE.fm – Rev. 1, Pub. 2/02
83
2002, Micron Technology Inc.
PRELIMINARY
MT8LLN22NCNE
COPPERTAIL
RTC I/O Register Set
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 in the I/O space. Table 11 summarizes the
RTC I/O register set.
RTC Standard RAM Index Register
RTC Standard RAM Data Register
1
IRQ9 Edge/Level mode.
0: Edge Triggered mode.
1: Level Triggered mode.
Must be programmed to 0 in master controller.
R/W
0
Reserved. Must be programmed to 0 in both master and slave
controllers.
R/W
0
Edge/Level Control Register
ADDRESS: 4D0h
SYMBOL: ELCR1, ELCR2
ADDRESS: 4D1h
MASTER CONTROLLER
SLAVE CONTROLLER
BITS
DESCRIPTION
PROPERTIES
RESET
Table 11
RTC I/O Register Set
ADDRESS
ALIAS
REGISTER
0070h
0072h,
0074h,
0076h
RTC Index Register.
0071h
0073h,
0075h,
0077h
RTC Data Register.
0072h
RTC Extended RAM Index Register.
0073h
RTC Extended RAM Data Register.
ADDRESS: 70h
SYMBOL: NMI_EN
BITS
DESCRIPTION
PROPERTIES
RESET
7
NMI Disable. When set, NMI is disabled. When clear, NMI is enabled.
W/O
0
6:0
RTC Standard RAM Index Address. Index to the lower 128 bytes of Non-
Volatile CMOS RAM.
W/O
0
ADDRESS: 71h
BITS
DESCRIPTION
PROPERTIES
RESET
7:0
RTC Data from the lower 128 bytes of non-volatile CMOS RAM.
R/W
0
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