xr17v254 Exar Corporation, xr17v254 Datasheet - Page 30
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xr17v254
Manufacturer Part Number
xr17v254
Description
66mhz Pci Bus Quad Uart With Power Management Support
Manufacturer
Exar Corporation
Datasheet
1.XR17V254.pdf
(70 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
xr17v254IV-F
Manufacturer:
Exar Corporation
Quantity:
10 000
Part Number:
xr17v254IV-F
Manufacturer:
EXAR/艾科嘉
Quantity:
20 000
XR17V254
66MHZ PCI BUS QUAD UART WITH POWER MANAGEMENT SUPPORT
F
IGURE
O
UTPUT
R
100000
115200
153600
200000
225000
230400
250000
300000
EQUIRED
10000
19200
25000
28800
38400
50000
57600
75000
R
2400
4800
9600
400
T
11. B
ATE
ABLE
D
ATA
AUD
12: T
XTAL1
XTAL2
R
YPICAL DATA RATES WITH A
D
ATE
16x Clock
(Decimal)
IVISOR FOR
52.0833
39.0625
26.0417
13.0208
156.25
78.125
9.7656
6.6667
6.5104
312.5
3750
625
150
7.5
60
30
20
15
G
6
5
ENERATOR
Crystal
Buffer
Osc/
O
BTAINABLE IN
Channels
To Other
312 8/16
156 4/16
78 2/16
52 1/16
39 1/16
26 1/16
D
9 12/16
6 11/16
7 8/16
6 8/16
V254
3750
IVISOR
625
150
60
30
20
15
13
6
5
Divide by 4
Divide by 1
Prescaler
Prescaler
24 MH
DLM P
V
ALUE
Z CRYSTAL OR EXTERNAL CLOCK AT
30
ROGRAM
E
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
(HEX)
MCR Bit-7=0
MCR Bit-7=1
(default)
DLL, DLM and DLD
Fractional Baud
Rate Generator
DLL P
V
ALUE
Registers
Logic
A6
9C
4E
3C
1E
1A
71
38
96
34
27
14
D
ROGRAM
F
9
7
6
6
6
5
(HEX)
DLD P
V
to Transmitter
and Receiver
ALUE
Rate Clock
16X or 8X
Sampling
ROGRAM
C
B
0
0
8
4
0
2
0
1
1
0
1
0
0
0
8
8
0
0
(HEX))
16X S
AMPLING
D
ATA
R
ATE
0.04
0.08
0.16
0.16
0.31
0.16
REV. 1.0.0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
E
RROR
(%)