xr17c152im Exar Corporation, xr17c152im Datasheet - Page 38
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xr17c152im
Manufacturer Part Number
xr17c152im
Description
5v Pci Bus Dual Uart
Manufacturer
Exar Corporation
Datasheet
1.XR17C152IM.pdf
(62 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
xr17c152im-F
Manufacturer:
Exar Corporation
Quantity:
10 000
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XR17C152
5V PCI BUS DUAL UART
FCR[7:6]: Receive FIFO Trigger Select
(logic 0 = default, RX trigger level =1)
The FCTR Bits 6-7 are associated with these 2 bits. These 2 bits are used to set the trigger level for the receiv-
er FIFO interrupt.
use different trigger tables. Whichever selection is made last applies to both the RX and TX side.
T
Table A
Table B
Table C
Table D
RIGGER
T
ABLE
FCTR
B
IT
0
0
1
1
-7
Table 14
FCTR
T
B
ABLE
IT
0
1
0
1
-6
shows the complete selections. Note that the receiver and the transmitter cannot
14: T
B
FCR
IT
X
0
0
1
1
0
0
1
1
0
0
1
1
-7
RANSMIT AND
B
FCR
IT
X
0
1
0
1
0
1
0
1
0
1
0
1
-6
B
FCR
R
IT
X
0
0
0
1
1
0
0
1
1
ECEIVE
-5
38
BIT
FCR
FIFO T
X
0
0
1
0
1
0
1
0
1
-4
T
Programmable Programmable 16C850, 16C2850,
RIGGER
RIGGER
1 (default)
R
ECEIVE
14
16
24
28
16
56
60
4
8
8
8
L
L
EVEL
EVEL
S
ELECTION
1 (default)
T
T
RANSMIT
L
RIGGER
EVEL
16
24
30
16
32
56
8
8
16C550, 16C2550,
16C2552, 16C554,
16C580 compati-
ble.
16C650A compati-
ble.
16C654 compati-
ble.
16C2852, 16C854,
16C864, 16L2750,
16L2751, 16L2752
compatible.
áç
áç
áç
áç
C
OMPATIBILITY
REV. 1.2.0
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