- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄371179 > T7121-EL2 T7121 HDLC Interface for ISDN PDF資料下載
參數(shù)資料
| 型號： | T7121-EL2 |
| 英文描述： | T7121 HDLC Interface for ISDN |
| 中文描述： | T7121的HDLC接口用于ISDN |
| 文件頁數(shù)： | 41/68頁 |
| 文件大?。?/td> | 685K |
| 代理商： | T7121-EL2 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁當前第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁
Lucent Technologies Inc.
41
Data Sheet
April 1997
T7121 HDLC Interface for ISDN (HIFI-64)
Functional Description
(continued)
Table 20. Register R12—Receiver Mask Register
R12—B7
RBM7
(1)
R12—B6
RBM6
(1)
R12—B5
RBM5
(1)
R12—B4
RBM4
(1)
R12—B3
RBM3
(1)
R12—B2
RBM2
(1)
R12—B1
RBM1
(1)
R12—B0
RBM0
(1)
Register
R12
Bit
Symbol
RBM0—RBM7
Receiver Time-Slot Bit Mask.
This register allows the HIFI-64 to pro-
cess some subset of each byte received. A 1 in each bit position means
the whole byte is valid data, while placing a 0 in any bit position instructs
the HIFI-64 to ignore that bit. For example, 11111111 (default) means
process the entire received byte, and 11000000 means process only the
two most significant bits.
Name/Function
B(0—7)
The masking feature is available only in the TDM highway mode (i.e.,
HWYEN, R0—B7 = 1). RBM0 masks the least significant bit received (as
defined by RLBIT [R11—B6]). See Figures 8 and 9 for examples of bit
masking and subrate operation.
Table 21. Alternate Register AR12—Receiver Match Character Register
AR12—B7
RMC7
(0)
AR12—B6
RMC6
(1)
AR12—B5
RMC5
(1)
AR12—B4
RMC4
(1)
AR12—B3
RMC3
(1)
AR12—B2
RMC2
(1)
AR12—B1
RMC1
(1)
AR12—B0
RMC0
(0)
Register
AR12
Bit
Symbol
RMC0—RMC7
Name/Function
B(0—7)
Receiver Match Character.
This character is used only in transparent
mode (TRANS, AR11—B6 = 1). When the pattern match bit (MATCH,
AR11—B5) is set to 1, the HIFI-64 searches the incoming bit stream for
the receiver match character. Data is loaded into the receive FIFO only
after this character has been identified. The bits identified as matching
the receiver match character are the first byte loaded into the receive
FIFO. The default is to search for a flag, but any character can be pro-
grammed by the user. The search for the receiver match character can
be in a sliding window fashion (ALOCT, AR11—B4 = 0) or only on byte
boundaries (ALOCT, AR11—B4 = 1).
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| T7121-PL2 | T7121 HDLC Interface for ISDN |
| T7121 | HDLC Interface for ISDN (HIFI-64)(應(yīng)用于ISDN的HDLC（高階數(shù)據(jù)鏈路）接口) |
| T7502 | T7502 Dual PCM Codec with Filters |
| T7503 | T7503 Dual PCM Codec with Filters |
| T7504 | T7504 and T75504 Quad PCM Codecs with Filters |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| T7-121F1 | 功能描述:撥動開關(guān) ON OFF ON 1 Pole Standard Bat Handle RoHS:否 制造商:OTTO 觸點形式: 開關(guān)功能: 電流額定值: 電壓額定值 AC: 電壓額定值 DC: 功率額定值: 端接類型: 安裝風(fēng)格: 端子密封: 觸點電鍍: 照明: |
| T7-121F5 | 功能描述:撥動開關(guān) ON OFF ON 1 Pole Standard Bat Handle RoHS:否 制造商:OTTO 觸點形式: 開關(guān)功能: 電流額定值: 電壓額定值 AC: 電壓額定值 DC: 功率額定值: 端接類型: 安裝風(fēng)格: 端子密封: 觸點電鍍: 照明: |
| T7-121G1 | 功能描述:撥動開關(guān) (ON) OFF ON 1 Pole Standard Bat Handle RoHS:否 制造商:OTTO 觸點形式: 開關(guān)功能: 電流額定值: 電壓額定值 AC: 電壓額定值 DC: 功率額定值: 端接類型: 安裝風(fēng)格: 端子密封: 觸點電鍍: 照明: |
| T7-121G5 | 功能描述:撥動開關(guān) (ON) OFF ON 1 Pole Standard Bat Handle RoHS:否 制造商:OTTO 觸點形式: 開關(guān)功能: 電流額定值: 電壓額定值 AC: 電壓額定值 DC: 功率額定值: 端接類型: 安裝風(fēng)格: 端子密封: 觸點電鍍: 照明: |
| T7-121H1 | 制造商:OTTO 功能描述:Toggle Switches OFF NONE ON 1 Pole Standard Bat Handle 制造商:OTTO Engineering Inc 功能描述:TOGGLE SWITCH 1 POLE |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。