- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄358934 > LPC47M14M-NC (SMSC Corporation) CAT5 MULTI 1X9 VIDEO DISTRIBUTION AMP PDF資料下載
參數(shù)資料
| 型號： | LPC47M14M-NC |
| 廠商： | SMSC Corporation |
| 英文描述： | CAT5 MULTI 1X9 VIDEO DISTRIBUTION AMP |
| 中文描述： | 128引腳ENGANCED超級I / O與LPC接口和USB集線器控制器 |
| 文件頁數(shù)： | 115/205頁 |
| 文件大?。?/td> | 1219K |
| 代理商： | LPC47M14M-NC |
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頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁當(dāng)前第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁第134頁第135頁第136頁第137頁第138頁第139頁第140頁第141頁第142頁第143頁第144頁第145頁第146頁第147頁第148頁第149頁第150頁第151頁第152頁第153頁第154頁第155頁第156頁第157頁第158頁第159頁第160頁第161頁第162頁第163頁第164頁第165頁第166頁第167頁第168頁第169頁第170頁第171頁第172頁第173頁第174頁第175頁第176頁第177頁第178頁第179頁第180頁第181頁第182頁第183頁第184頁第185頁第186頁第187頁第188頁第189頁第190頁第191頁第192頁第193頁第194頁第195頁第196頁第197頁第198頁第199頁第200頁第201頁第202頁第203頁第204頁第205頁
SMSC DS – LPC47M14X
Page 115
Rev. 03/19/2001
Miscellaneous Status Register (MSC_STS) is for the either edge triggered interrupt status bits. If the EETI function is
selected for a GPIO then both a high-to-low and a low-to-high edge will set the corresponding MSC status bits.
Status bits are cleared on a write of ‘1’. See the “Runtime Registers” section for more information.
The configuration register for the either edge triggered interrupt status bits is defined in the “Runtime Registers”
section.
6.14.7
LED Functionality
The LPC47M14x provides LED functionality on two GPIOs, GP60 and GP61. These pins can be configured to turn
the LED on and off and blink independent of each other through the LED1 and LED2 runtime registers at offset 0x5D
and 0x5E from the base address located in the primary base I/O address in Logical Device A.
The LED pins (GP60 and GP61) are able to control the LED while the part is under VTR power with VCC removed.
In order to control an LED while the part is under VTR power, the GPIO pin must be configured for the LED function
and either open drain or push-pull buffer type. In the case of open-drain buffer type, the pin is capable of sinking
current to control the LED. In the case of push-pull buffer type, the part will source current. The part is also able to
blink the LED under VTR power, since the external 32kHz clock is always connected.
The LED pins can drive an LED when the buffer type is configured to be push-pull and the part is powered by either
VCC or VTR, since the buffers for these pins are powered by VTR. This means they will source their specified current
from VTR even when VCC is present.
The LED control registers are defined in the “Runtime Registers” section.
6.15 SYSTEM MANAGEMENT INTERRUPT (SMI)
The LPC47M14x implements a “group” nIO_SMI output pin. The System Management Interrupt is a non-maskable
interrupt with the highest priority level used for OS transparent power management. The nSMI group interrupt output
consists of the enabled interrupts from each of the functional blocks in the chip and many of the GPIOs and the Fan
tachometer pins. The GP27/nIO_SMI pin, when selected for the nIO_SMI function, can be programmed to be active
high or active low via the polarity bit in the GP27 register. The output buffer type of the pin can be programmed to be
open-drain or push-pull via bit 7 of the GP27 register. The nIO_SMI pin function defaults to active low, open-drain
output.
The interrupts are enabled onto the group nSMI output via the SMI Enable Registers 1 to 5. The nSMI output is then
enabled onto the group nIO_SMI output pin via bit[7] in the SMI Enable Register 2. The SMI output can also be
enabled onto the serial IRQ stream (IRQ2) via Bit[6] in the SMI Enable Register 2. The internal SMI can also be
enabled onto the nIO_PME pin. Bit[5] of the SMI Enable Register 2 is used to enable the SMI output onto the
nIO_PME pin (GP42). This bit will enable the internal SMI output into the PME logic through the DEVINT_STS bit in
PME_STS3. See PME section for more details.
An example logic equation for the nSMI output for SMI registers 1 and 2 is as follows:
nSMI = (EN_PINT and IRQ_PINT) or (EN_U2INT and IRQ_U2INT) or (EN_U1INT and IRQ_U1INT) or (EN_FINT and
IRQ_FINT) or (EN_MINT and IRQ_MINT) or (EN_KINT and IRQ_KINT) or (EN_IRINT and IRQ_IRINT)
6.15.1
SMI Registers
The SMI event bits for the GPIOs and the Fan tachometer events are located in the SMI status and Enable registers
3-5. The polarity of the edge used to set the status bit and generate an SMI is controlled by the polarity bit of the
control registers. For non-inverted polarity (default) the status bit is set on the low-to-high edge. If the EETI function
is selected for a GPIO then both a high-to-low and a low-to-high edge will set the corresponding SMI status bit.
Status bits for the GPIOs are cleared on a write of ‘1’.
The SMI logic for these events is implemented such that the output of the status bit for each event is combined with
the corresponding enable bit in order to generate an SMI.
The SMI registers are accessed at an offset from PME_BLK (see “Runtime Registers” section for more information).
The SMI event bits for the super I/O devices are located in the SMI status and enable register 1 and 2. All of these
status bits are cleared at the source except for IRINT, which is cleared by a read of the SMI_STS2 register; these
status bits are not cleared by a write of ‘1’. The SMI logic for these events is implemented such that each event is
directly combined with the corresponding enable bit in order to generate an SMI.
See the “Runtime Registers” section for the definition of these registers.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LPC47M14Q-NC | HD VIEW RECEIVER 2 PORT DAISYCHAINABLE |
| LPC47M14V-NC | AT PRINTER SERIAL CBL DB9 FEMALE - DB25 MALE |
| LPC47M14R-NC | 128 PIN ENGANCED SUPER I/O CONTROLLER WITH AN LPC INTERFACE AND USB HUB |
| LPC47M14I-NC | 128 PIN ENGANCED SUPER I/O CONTROLLER WITH AN LPC INTERFACE AND USB HUB |
| LPC47M14K-NC | RESTR 1.50K 1 TOL 1/8W MF |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LPC47M14N-NC | 制造商:SMSC 制造商全稱:SMSC 功能描述:128 PIN ENGANCED SUPER I/O CONTROLLER WITH AN LPC INTERFACE AND USB HUB |
| LPC47M14O-NC | 制造商:SMSC 制造商全稱:SMSC 功能描述:128 PIN ENGANCED SUPER I/O CONTROLLER WITH AN LPC INTERFACE AND USB HUB |
| LPC47M14P-NC | 制造商:SMSC 制造商全稱:SMSC 功能描述:128 PIN ENGANCED SUPER I/O CONTROLLER WITH AN LPC INTERFACE AND USB HUB |
| LPC47M14Q-NC | 制造商:SMSC 制造商全稱:SMSC 功能描述:128 PIN ENGANCED SUPER I/O CONTROLLER WITH AN LPC INTERFACE AND USB HUB |
| LPC47M14R-NC | 制造商:SMSC 制造商全稱:SMSC 功能描述:128 PIN ENGANCED SUPER I/O CONTROLLER WITH AN LPC INTERFACE AND USB HUB |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。