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参数资料
| 型号： | DS21Q43AT |
| 厂商： | DALLAS SEMICONDUCTOR |
| 元件分类： | Digital Transmission Controller |
| 英文描述： | DATACOM, FRAMER, PQFP128 |
| 封装： | TQFP-128 |
| 文件页数： | 18/60页 |
| 文件大小： | 748K |
| 代理商： | DS21Q43AT |
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DS21Q43A
25 of 60
SR1: STATUS REGISTER 1 (Address=06 Hex)
(MSB)
(LSB)
RSA1
RDMA
RSA0
RSLIP
RUA1
RRA
RCL
RLOS
SYMBOL
POSITION
NAME AND DESCRIPTION
RSA1
SR1.7
Receive Signaling All Ones. Set when the contents of timeslot
16 contains less than three 0s over 16 consecutive frames. This
alarm is not disabled in the CCS signaling mode.
RDMA
SR1.6
Receive Distant MF Alarm. Set when bit 6 of timeslot 16 in
frame 0 has been set for two consecutive multiframes. This
alarm is not disabled in the CCS signaling mode.
RSA0
SR1.5
Receive Signaling All 0s. Set when over a full MF, timeslot 16
contains all 0s.
RSLIP
SR1.4
Receive Side Elastic Store Slip. Set when the elastic store has
either repeated or deleted a frame of data.
RUA1
SR1.3
Receive Unframed All Ones. Set when an unframed all ones
code is received at RPOS and RNEG.
RRA
SR1.2
Receive Remote Alarm. Set when a remote alarm is received at
RPOS and RNEG.
RCL
SR1.1
Receive Carrier Loss. Set when 255 consecutive 0s have been
detected at RPOS and RNEG.
RLOS
SR1.0
Receive Loss of Sync. Set when the device is not synchronized
to the receive E1 stream.
ALARM CRITERIA Table 4-1
ALARM
SET CRITERIA
CLEAR CRITERIA
ITU
SPEC.
RSA1
(receive signaling
all ones)
over 16 consecutive frames
(one full MF) timeslot 16
contains less than three 0s
over 16 consecutive frames (one full
MF) timeslot 16 contains three or
more 0s
G.732
4.2
RSA0
(receive signaling
all 0s)
over 16 consecutive frames
(one full MF) timeslot 16
contains all 0s
over 16 consecutive frames (one full
MF) timeslot 16 contains at least a
single one
G.732
5.2
RDMA
(receive distant
multiframe alarm)
bit 6 in timeslot 16 of frame 0
set to 1 for two consecutive
MFs
bit 6 in timeslot 16 of frame 0 set to 0
for two consecutive MFs
O.162
2.1.5
RUA1
(receive unframed
all ones)
less than three 0s in two
frames (512 bits)
more than two 0s in two frames (512
bits)
O.162
1.6.1.2
RRA
(receive remote
alarm)
bit 3 of non-align frame set to
1 for three consecutive
occasions
bit 3 of non-align frame set to 0 for
three consecutive occasions
O.162
2.1.4
RCL
(receive carrier
loss)
255 consecutive 0s received
in 255-bit times, at least 32 1s are
received
G.775
相关PDF资料 |
PDF描述 |
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| DS21Q44T | DATACOM, FRAMER, PQFP128 |
| DS21Q44TN | DATACOM, FRAMER, PQFP128 |
| DS21Q48N | DATACOM, PCM TRANSCEIVER, PBGA144 |
| DS21Q48 | DATACOM, PCM TRANSCEIVER, PBGA144 |
| DS21Q552 | DATACOM, PCM TRANSCEIVER, PBGA256 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS21Q43AT+ | 功能描述:网络控制器与处理器 IC Quad E1 Framer RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
| DS21Q43ATN | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Quad E1 Framer |
| DS21Q43-ATN | 功能描述:网络控制器与处理器 IC Quad E1 Framer RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
| DS21Q44 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Enhanced QUAD E1 FRAMER |
| DS21Q44T | 功能描述:网络控制器与处理器 IC Enhanced Quad E1 Framer RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
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