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參數(shù)資料
| 型號(hào)： | 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(jí)I / O與LPC接口和USB集線器控制器 |
| 文件頁(yè)數(shù)： | 60/205頁(yè) |
| 文件大?。?/td> | 1219K |
| 代理商： | LPC47M14M-NC |
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SMSC DS – LPC47M14X
Page 60
Rev. 05/02/2000
ENHANCED DUMPREG
The DUMPREG command is designed to support system run-time diagnostics and application software development
and debug. To accommodate the LOCK command and the enhanced PERPENDICULAR MODE command the eighth
byte of the DUMPREG command has been modified to contain the additional data from these two commands.
COMPATIBILITY
The LPC47M14x was designed with software compatibility in mind. It is a fully backwards- compatible solution with the
older generation 765A/B disk controllers. The FDC also implements on-board registers for compatibility with the PS/2, as
well as PC/AT and PC/XT, floppy disk controller subsystems. After a hardware reset of the FDC, all registers, functions
and enhancements default to a PC/AT, PS/2 or PS/2 Model 30 compatible operating mode, depending on how the
IDENT and MFM bits are configured by the system BIOS.
6.6
The LPC47M14x incorporates two full function UARTs. They are compatible with the NS16450, the 16450 ACE
registers and the NS16C550A. The UARTs perform serial-to-parallel conversion on received characters and parallel-to-
serial conversion on transmit characters. The data rates are independently programmable from 460.8K baud down to
50 baud. The character options are programmable for 1 start; 1, 1.5 or 2 stop bits; even, odd, sticky or no parity; and
prioritized interrupts. The UARTs each contain a programmable baud rate generator that is capable of dividing the input
clock or crystal by a number from 1 to 65535. The UARTs are also capable of supporting the MIDI data rate. Refer to
the Configuration Registers for information on disabling, power down and changing the base address of the UARTs.
The interrupt from a UART is enabled by programming OUT2 of that UART to a logic "1". OUT2 being a logic "0"
disables that UARTs interrupt. The second UART also supports IrDA, HP-SIR and ASK-IR modes of operation.
Note:
The UARTs 1 and 2 may be configured to share an interrupt. Refer to the Configuration section for more
information.
REGISTER DESCRIPTION
Addressing of the accessible registers of the Serial Port is shown below. The base addresses of the serial ports are
defined by the configuration registers (see “Configuration” section). The Serial Port registers are located at sequentially
increasing addresses above these base addresses. The LPC47M14x contains two serial ports, each of which contain a
register set as described below.
SERIAL PORT (UART)
Table 29 – Addressing the Serial Port
DLAB*
A2
A1
A0
REGISTER NAME
0
0
0
0
Receive Buffer (read)
0
0
0
0
Transmit Buffer (write)
0
0
0
1
Interrupt Enable (read/write)
X
0
1
0
Interrupt Identification (read)
X
0
1
0
FIFO Control (write)
X
0
1
1
Line Control (read/write)
X
1
0
0
Modem Control (read/write)
X
1
0
1
Line Status (read/write)
X
1
1
0
Modem Status (read/write)
X
1
1
1
Scratchpad (read/write)
1
0
0
0
Divisor LSB (read/write)
1
0
0
1
Divisor MSB (read/write
*
Note:
DLAB is Bit 7 of the Line Control Register
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 |
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