XR16L788IQ-F Exar Corporation, XR16L788IQ-F Datasheet - Page 24

• Manufacturer Part Number: XR16L788IQ-F
• Description: IC UART 64B 3.3V OCTAL 100QFP
• Manufacturer: Exar Corporation
• Type: IrDA or RS- 485r

Specifications of XR16L788IQ-F

• Number Of Channels: 8
• Package / Case: 100-BQFP
• Features: *
• Fifo's: 64 Byte
• Protocol: RS485
• Voltage - Supply: 2.97 V ~ 5.5 V
• 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): 2.97 V
• Supply Current: 5 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: 8
• Uart Features: Tx/Rx FIFO Counters
• Supply Voltage Range: 2.97V To 5.5V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: QFP
• 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: 1016-1284

XR16L788
HIGH PERFORMANCE 2.97V TO 5.5V OCTAL UART
Reserved.
TIMERMSB and TIMERLSB form a 16-bit value. The least-significant bit of the timer is being bit [0] of the
TIMERLSB with most-significant-bit being bit [7] in TIMERMSB. Reading the TIMERCNTL register will clear its
interrupt. Default value is zero upon power-up and reset.
Each bit selects 8X or 16X sampling rate for that UART channel, bit-0 is channel 0. Logic 0 (default) selects
normal 16X sampling with logic one selects 8X sampling rate. Transmit and receive data rates will double by
selecting 8X.
Reserved.
TIMERCNTL [0]
TIMERCNTL [1]
TIMERCNTL [2]
TIMERCNTL [3]
TIMERCNTL [7:4]
3.1.2.1
3.1.2.2
3.1.3
3.1.4
Bit-15
8XMODE [7:0] (default 0x00)
REGA [15:8]
Bit-14
TIMER [7:0] (default 0x00):
TIMERMSB [7:0] and TIMERLSB [7:0]
Bit-13
Logic zero (default) disables Timer-Counter interrupt and logic one enables the interrupt, reading the
TIMERCNTL clears the interrupt.
Logic zero (default) stops/pauses the timer and logic one starts/re-starts the timer/counter.
Logic zero (default) selects re-trigger timer function and logic one selects one-shot (timer function.
Logic zero (default) selects internal and logic one selects external clock to the timer/counter.
Reserved (defaults to zero).
TIMERMSB Register
(default 0x00)
Bit-12
Bit-7 Bit-6 Bit-5 Bit-4 Bit-3 Bit-2
Rsvd
Bit-11
16-Bit Timer/Counter Programmable Registers
Ch-7
Bit-7 Bit-6 Bit-5 Bit-4 Bit-3 Bit-2 Bit-1 Bit-0
Individual UART Channel 8X Clock Mode Enable
T
ABLE
Rsvd
Bit-10
Ch-6
10: TIMER CONTROL R
Rsvd
TIMERCNTL Register
Bit-9
Ch-5 Ch-4 Ch-3 Ch-2 Ch-1 Ch-0
8XMODE Register
Rsvd
Bit-8
24
Select
Clock
Bit-7
Re-trigger
Single/
Bit-6
EGISTER
Bit-1 Bit-0
Start/
Stop
Bit-5
TIMERLSB Register
Enable
INT
Bit-4
Bit-3
Bit-2
Bit-1
REV. 1.2.3
Bit-0