XR17D154IV-F Exar Corporation, XR17D154IV-F Datasheet - Page 41

• Manufacturer Part Number: XR17D154IV-F
• Description: IC UART PCI BUS QUAD 144LQFP
• Manufacturer: Exar Corporation
• Type: IrDA or RS- 485r

Specifications of XR17D154IV-F

• Number Of Channels: 4, QUART
• Package / Case: 144-LQFP
• Features: *
• Fifo's: 64 Byte
• Protocol: RS485
• Voltage - Supply: 3.3V, 5V
• With Auto Flow Control: Yes
• With Irda Encoder/decoder: Yes
• With False Start Bit Detection: Yes
• With Modem Control: Yes
• Mounting Type: Surface Mount
• Data Rate: 6.25 Mbps
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 3 V
• Supply Current: 4 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 3.3 V or 5 V
• No. Of Channels: 4
• Uart Features: Tx/Rx FIFO Counters
• Supply Voltage Range: 3V To 5.5V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: LQFP
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 1016-1290

xr
REV. 1.2.2
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
T
RIGGER
ABLE
FCTR
B
IT
0
0
1
1
-7
Table 15
T
FCTR
B
ABLE
IT
0
1
0
1
-6
shows the complete selections. Note that the receiver and the transmitter cannot
15: 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
0
0
0
1
1
0
0
1
1
X
ECEIVE
-5
41
BIT
FCR
FIFO T
UNIVERSAL (3.3V AND 5V) PCI BUS QUAD UART
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.
C
OMPATIBILITY
XR17D154