參數(shù)資料
型號: T9000
廠商: Lineage Power
英文描述: ISDN Network Termination Node (NTN) Device(ISDN網(wǎng)絡終端節(jié)點器件)
中文描述: ISDN網(wǎng)絡終端節(jié)點(新界西)設備(ISDN網(wǎng)網(wǎng)絡終端節(jié)點器件)
文件頁數(shù): 107/126頁
文件大小: 1523K
代理商: T9000
Lucent Technologies Inc.
107
Advance Data Sheet
April 2000
ISDN Network Termination Node (NTN) Device
T9000
14 Comparators
(continued)
14.1 Comparators Register Set
(continued)
Table 115. CMIR: Comparator Interrupt Register (0x4E)
Note:
Bits CMI.[2:0] in this register are set to 1 upon occurrence of the corresponding interrupt condition, and are
cleared to 0 when the register is read.
Table 116. CMIE: Comparator Interrupt Enable (0x4F)
14.2 Configuration Sequence
In order to avoid unwanted interrupts when changing the CMT value, the user should satisfy at least one of the fol-
lowing two conditions:
I
The comparator interrupt is disabled.
I
The comparator is powered down.
Reg
CMIR
RESET
R/W
R
Default
Bit 7
Bit 6
CMV.2
Bit 5
CMV.1
Bit 4
CMV.0
Bit 3
Bit 2
CMI.2
Bit 1
CMI.1
Bit 0
CMI.0
Bit #
7
6—4
Symbol
CMV.[2:0]
Name/Description
Reserved.
Comparator [2:0] Value.
These status bits indicate the current state of the correspond-
ing comparator output. No interrupt is generated in response to the value in these bits.
Reserved.
Comparator [2:0] Interrupt.
This interrupt indicates that the comparator output has tog-
gled in the direction specified in register CMT.
3
2—0
CMI.[2:0]
Reg
CMIE
RESET
R/W
R/W
Default
Bit 7
0
Bit 6
CMV.2
Bit 5
CMV.1
Bit 4
CMV.0
Bit 3
0
Bit 2
CMIE.2
0
Bit 1
CMIE.1
0
Bit 0
CMIE.0
0
Bit #
7
6—4
Symbol
CMV.[2:0]
Name/Description
Reserved.
Program to 0.
Comparator [2:0] Value (Read-Only Field).
These status bits indicate the current state
of the corresponding comparator output.
Reserved.
Program to 0.
Comparator [2:0] Interrupt Enable.
3
2—0
CMIE.[2:0]
0: Interrupt disabled (masked).
1: Interrupt enabled.
Masked interrupts are not latched.
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