- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄371179 > T8302 T8302 Internet Protocol Telephone Advanced RISC Machine (ARM) Ethernet QoS Using IEEE 802.1q PDF資料下載
參數(shù)資料
| 型號(hào)： | T8302 |
| 英文描述： | T8302 Internet Protocol Telephone Advanced RISC Machine (ARM) Ethernet QoS Using IEEE 802.1q |
| 中文描述： | T8302因特網(wǎng)協(xié)議電話高級(jí)RISC機(jī)（ARM）的以太網(wǎng)使用IEEE 802.1q的服務(wù)質(zhì)量 |
| 文件頁(yè)數(shù)： | 229/248頁(yè) |
| 文件大?。?/td> | 7321K |
| 代理商： | T8302 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)第123頁(yè)第124頁(yè)第125頁(yè)第126頁(yè)第127頁(yè)第128頁(yè)第129頁(yè)第130頁(yè)第131頁(yè)第132頁(yè)第133頁(yè)第134頁(yè)第135頁(yè)第136頁(yè)第137頁(yè)第138頁(yè)第139頁(yè)第140頁(yè)第141頁(yè)第142頁(yè)第143頁(yè)第144頁(yè)第145頁(yè)第146頁(yè)第147頁(yè)第148頁(yè)第149頁(yè)第150頁(yè)第151頁(yè)第152頁(yè)第153頁(yè)第154頁(yè)第155頁(yè)第156頁(yè)第157頁(yè)第158頁(yè)第159頁(yè)第160頁(yè)第161頁(yè)第162頁(yè)第163頁(yè)第164頁(yè)第165頁(yè)第166頁(yè)第167頁(yè)第168頁(yè)第169頁(yè)第170頁(yè)第171頁(yè)第172頁(yè)第173頁(yè)第174頁(yè)第175頁(yè)第176頁(yè)第177頁(yè)第178頁(yè)第179頁(yè)第180頁(yè)第181頁(yè)第182頁(yè)第183頁(yè)第184頁(yè)第185頁(yè)第186頁(yè)第187頁(yè)第188頁(yè)第189頁(yè)第190頁(yè)第191頁(yè)第192頁(yè)第193頁(yè)第194頁(yè)第195頁(yè)第196頁(yè)第197頁(yè)第198頁(yè)第199頁(yè)第200頁(yè)第201頁(yè)第202頁(yè)第203頁(yè)第204頁(yè)第205頁(yè)第206頁(yè)第207頁(yè)第208頁(yè)第209頁(yè)第210頁(yè)第211頁(yè)第212頁(yè)第213頁(yè)第214頁(yè)第215頁(yè)第216頁(yè)第217頁(yè)第218頁(yè)第219頁(yè)第220頁(yè)第221頁(yè)第222頁(yè)第223頁(yè)第224頁(yè)第225頁(yè)第226頁(yè)第227頁(yè)第228頁(yè)當(dāng)前第229頁(yè)第230頁(yè)第231頁(yè)第232頁(yè)第233頁(yè)第234頁(yè)第235頁(yè)第236頁(yè)第237頁(yè)第238頁(yè)第239頁(yè)第240頁(yè)第241頁(yè)第242頁(yè)第243頁(yè)第244頁(yè)第245頁(yè)第246頁(yè)第247頁(yè)第248頁(yè)
Agere Systems Inc.
227
Data Sheet
July 2001
T8302 Internet Protocol Telephone
Advanced RISC Machine (
ARM
)
17 Key and Lamp Controller (KLC)
(continued)
The seven row output pins are driven by an 8 mA type output driver. This will provide a minimum low-
level
current
output of 8 mA and a minimum high-
level
current output of 8 mA. The 8 column output pins are driven by a 4 mA
type output driver. This will provide a minimum low-level output current of 4 mA and a minimum
high-level
output
current of 4 mA. Each column output pin also contains a 50 K
pull-down resistor. The
LCNTRL
output pin is
driven by a 8 mA type output driver. This will provide a minimum low-
level
current output of 8 mA and a minimum
high-
level
current output drive of 8.0 mA. The message and speaker LED output pins are driven by an 8 mA type
output driver. This will provide a minimum low-
level
current output of 8 mA and a minimum high-
level
current output
of 8 mA.
The seven row output pins
K_ROW[6:0]
are driven active-low one at a time, each turning on a single row in the
LED drive matrix. The other rows are 3-stated to turn off the respective transistor, disabling that row's power.
Spe-
cific LEDs in the enabled row are turned on by driving the corresponding column pins active-high.
LCNTRL
is
driven active-high to enable the entire LED drive matrix.
The seven row output pins
K_ROW[6:0]
are driven active-high to sample the key scan matrix. The column pins are
3-stated during the key scan process but their pull-down resistor will keep them at a low logic level unless a key is
depressed and that column pin is pulled high by the low impedance path created between that key's row and col-
umn pins.
The message and speaker LEDs are connected to the
MSGLED
and
SPKRLED
pins. These pins are driven
active-low to turn on the respective LEDs. These pins will also be driven active-low when the KLC is in a software
or hardware reset state. This will enable a user to detect the presence of power on the set if the microprocessor is
not working properly. These LEDs will be off after the KLC exits the reset state and each LED will be controlled by
its
lamp rate register
.
17.3 KLC Register
17.3.1 Lamp Rate Registers
Rate generation for the LED key matrix is provided by the
lamp rate register
for address
0xE000 D000:0xE000 D06C. In addition, one more register is provided (0xE000 D070) for programming rate gen-
eration to the speaker and message LEDs. There are 56 LEDs; one register for two LEDs.
Pin Name
K_COL[7:0]
I/O Type
I/O
Current IOH
4 mA
Current IOL
4 mA
Pull-up/Down
50K pull-down
I/O Signal Description
8 column input/output for LED drive
matrix and inputs for key scan
matrix.
Message and speaker LED direct
output. Active-low.
—
MSGLED,
SPKRLED
SWHOOK
O
8 mA
8 mA
None
I
—
—
—
Table 199. KLC Register Map
Register
Address
Lamp rate registers
Noscan control register
Key scan status register
KLC interrupt register
KLC interrupt enable register
0xE000 D000:0xE000 D070
0xE000 D100
0xE000 D140
0xE000 D180
0xE000 D1C0
Table 198. KLC Matrix Pins
(continued)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| T8502 | T8502 and T8503 Dual PCM Codecs with Filters |
| T8503 | T8502 and T8503 Dual PCM Codecs with Filters |
| T8531A | T8531A/8532 Multichannel Programmable Codec Chip Set |
| T8531 | T8502 and T8503 Dual PCM Codecs with Filters |
| T8532 | T8502 and T8503 Dual PCM Codecs with Filters |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| T8302A | 制造商:MOLEX 制造商全稱:Molex Electronics Ltd. 功能描述:Terminator Die |
| T8302B | 制造商:MOLEX 制造商全稱:Molex Electronics Ltd. 功能描述:Terminator Die |
| T8302F | 制造商:MOLEX 制造商全稱:Molex Electronics Ltd. 功能描述:Terminator Die |
| T8303A | 制造商:MOLEX 制造商全稱:Molex Electronics Ltd. 功能描述:Terminator Die |
| T8303ABNAD | 制造商:Arcolectric 功能描述:1 Pole Miniature push button(with light) |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。