參數(shù)資料
型號: FDC37C665IR
廠商: SMSC Corporation
英文描述: 3/5 Volt Advanced High-Performance Multi-Mode Parallel Port Super I/O Floppy Disk Controller with Infranred Support
中文描述: 3 / 5伏先進(jìn)的高性能多模并口超級I / O軟盤與Infranred支持磁盤控制器
文件頁數(shù): 84/162頁
文件大?。?/td> 562K
代理商: FDC37C665IR
84
XMITTER are controlled separately, either one
or both can be in the polled mode of operation.
In this mode, the user's program will check
RCVR and XMITTER status via the LSR. LSR
definitions for the FIFO Polled Mode are as
follows:
-Bit 0=1 as long as there is one byte in the
RCVR FIFO.
-Bits 1 to 4 specify which error(s) have occurred.
Character error status is handled the same
way as when in the interrupt
mode, the IIR is not affected since EIR bit 2=0.
-Bit 5 indicates when the XMIT FIFO is empty.
-Bit 6 indicates that both the XMIT FIFO and
shift register are empty.
-Bit 7 indicates whether there are any errors in
the RCVR FIFO.
There is no trigger level reached or timeout
condition indicated in the FIFO Polled Mode,
however, the RCVR and XMIT FIFOs are still
fully capable of holding characters.
Table 35 - Baud Rates Using 1.8462 MHz Clock (24 MHz/13)
DIVISOR USED TO
GENERATE 16X CLOCK
BETWEEN DESIRED AND ACTUAL*
2304
1536
1047
857
768
384
192
96
64
58
48
32
24
16
12
6
3
2
1
32770
32769
DESIRED
BAUD RATE
50
75
110
134.5
150
300
600
1200
1800
2000
2400
3600
4800
7200
9600
19200
38400
57600
115200
230400
460800
PERCENT ERROR DIFFERENCE
CRC:
BIT 7 OR 6
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
1
1
0.001
-
-
0.004
-
-
-
-
-
0.005
-
-
-
-
-
-
0.030
0.16
0.16
0.16
0.16
*Note: The percentage error for all baud rates, except where indicated otherwise, is 0.2%.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
FDC37C665IRQFP 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:SMSC 功能描述:
FDC37C666GT 制造商:SMSC 制造商全稱:SMSC 功能描述:High-Performance Multi-Mode Parallel Port Super I/O Floppy Disk Controllers
FDC37C669 制造商:SMSC 制造商全稱:SMSC 功能描述:PC 98/99 Compliant Super I/O Floppy Disk Controller with Infrared Support
FDC37C669_07 制造商:SMSC 制造商全稱:SMSC 功能描述:PC 98/99 Compliant Super I/O Floppy Disk Controller with Infrared Support
FDC37C669FRQFP 制造商:Rochester Electronics LLC 功能描述:- Bulk