參數資料
型號: T7256A
英文描述: Compliance with the New ETSI PSD Requirement
中文描述: 符合新的ETSI PSD的要求
文件頁數: 41/116頁
文件大?。?/td> 1056K
代理商: T7256A
Data Sheet
January 1998
T7256 Single-Chip NT1 (SCNT1) Transceiver
Lucent Technologies Inc.
37
Microprocessor Interface Description
(continued)
Registers
(continued)
Table 23. Maintenance Interrupt Register (Address 17h)
These bits are cleared during RESET.
Table 24. Maintenance Interrupt Mask Register (Address 18h)
Reg
MIR0
R/W
R
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
EMINT
Bit 1
ILINT
Bit 0
QMINT
Register
MIR0
Bit
0
Symbol
QMINT
Name/Description
Quiet Mode Interrupt.
Activates (set to 1) when the ANSI maintenance
state machine detects a request on the OPTOIN pin for the device to en-
ter the quiet mode. Bit is cleared on read.
0—No quiet mode request.
1—Quiet mode requested.
Insertion Loss Interrupt.
Activates (set to 1) when the ANSI mainte-
nance state machine has detected a request on the OPTOIN pin for the
device to transmit the SN1 tone on the U-interface. Bit is cleared on read.
0—No SN1 tone request.
1—SN1 tone requested.
Exit Maintenance Mode Interrupt.
Activates (set to 1) when the ANSI
maintenance state machine detects a request on the OPTOIN pin for the
device to exit the current maintenance mode. Bit is cleared on read.
0—No exit request.
1—Exit requested.
MIR0
1
ILINT
MIR0
2
EMINT
Reg
MIR1
Default State on RESET
R/W
R/W
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
EMINTM
1
Bit 1
ILINTM
1
Bit 0
QMINTM
1
Register
MIR1
Bit
0
Symbol
QMINTM
Name/Description
Quiet Mode Interrupt Mask.
0—QMINT interrupt enabled.
1—QMINT interrupt disabled (default).
Insertion Loss Interrupt Mask.
0—ILINT interrupt enabled.
1—ILINT interrupt disabled (default).
Exit Maintenance Mode Interrupt Mask.
0—EMINT interrupt enabled.
1—EMINT interrupt disabled (default).
MIR1
1
ILINTM
MIR1
2
EMINTM
相關PDF資料
PDF描述
T7288 CEPT/E1 Line Interface(CEPT/E1 線接口)
T7290A DS1/T1/CEPT/E1 Line Interface(DS1/T1/CEPT/E1 線接口)
T7295-1 E3 Integrated Line Receiver(E3 集成線接收器)
T7295-6 DS3/SONET STS-1 Integrated Line Receiver(DS3/SONET STS-1 集成線接收器)
T7296 Integrated Line Transmitter(集成PCM線傳送器)
相關代理商/技術參數
參數描述
T7257 制造商:TE Connectivity 功能描述:
T-726 制造商:RHOMBUS-IND 制造商全稱:Rhombus Industries Inc. 功能描述:ADSL Line Interface Transformers
T7263 制造商:TE Connectivity 功能描述:
T7263A 制造商:Toshiba America Electronic Components 功能描述:T7263A
T7264 制造商:TE Connectivity 功能描述: