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IK Semicon |
TECHNICAL DATA
Quard Uart with 256-Byte FIFO
IN16C1054
1. Functional Description
IN16C1054 is a quad UART(Universal Asynchronous Receiver/Transmitter) with 256-byte FIFO supporting maximum
communication speed of 5.3Mbps. It offers flow control function by hardware or software and signal lines which can open
or close the Tx/Rx input/output when communicating by RS-422 or RS-485. It can handle four interrupt signals (INT0,
INT1, INT2 and INT3) with one global interrupt signal line (GINT) and offers a new ‘Xoff re-transmit’ function in addition to
Xon any character.
UART can convert 8-bit parallel data to asynchronous serial data and vice versa. It can transmit 5 to 8-bit letters, program
I/O interrupt trigger level and has 256-byte I/O data FIFO.
www.DaUtAaRShTeceat4nUg.ceonmerate any baud rate using clock and programmable divisor, transmit data with even, odd or no parity and 1,
1.5, 2 stop bit, and detect break, idle, framing error, FIFO overflow and parity error in input data.
UART has a software interface for modem controlling.
IN16C1054 offers TQFP80 and PLCC68 packages.
2. Features
• 4 Channel UART
• 3.3V Operation
• 5V Tolerant Inputs
• Pin-to-pin Compatible with Industry Standard
SB16C554 with Additional
• Enhancements
• Up to 5.3 Mbps Baud Rate (Up to 85 MHz Oscillator
Input Clock)
• 256-byte Transmit FIFO
• 256-byte Receive FIFO with Error Flags
• Industrial Temperature Range (-20 ℃ to +85 ℃)
• Programmable and Selectable Transmit and
Receive FIFO Trigger Levels for DMA
• and Interrupt Generation
• Software (Xon/Xoff) / Hardware (RTS#/CTS#) Flow
Control
- Programmable Xon/Xoff Characters
- Programmable Auto-RTS and Auto-CTS
• Global Interrupt Mask/Poll Control
• Optional Data Flow Resume by Xon Any Character
Control
• Optional Data Flow Additional Halt by Xoff Re-
transmit Control
• RS-422 Point to Point/Multi-Drop Control
• RS-485 Echo/Non Echo Control
• DMA Signaling Capability for Both Received and
Transmitted Data
• Software Selectable Baud Rate Generator
• Prescaler Provides Additional Divide-by-4 Function
• Fast Data Bus Access Time
• Programmable Sleep Mode
• Programmable Serial Interface Characteristics
- 5, 6, 7, or 8-bit Characters
- Even, Odd, or No Parity Bit Generation and
Detection
- 1, 1.5, or 2 Stop Bit Generation
• False Start Bit Detection
• Line Break Generation and Detection
• Fully Prioritized Interrupt System Controls
• Modem Control Functions (RTS#, CTS#, DTR#,
DSR#, DCD#, and RI#)
Rev. 00
IN16C1054
3. Ordering Information
Table 1: Ordering Information
Part Number
IN16C1054-TQ
IN16C1054-PL
Package
80-Pin TQFP
68-Pin PLCC
4. Block Diagram
Operating Temperature Range
-20 ℃ to +85 ℃
-20 ℃ to +85 ℃
Device Status
Active
Active
www.DataSheet4U.com
D[7:0]
IOR#/IOW#
RESET
A[2:0]
CS#[3:0]
SB16C1054
DATA AND
CONTROL
LOGIC
REGISTER
CONTROL
LOGIC
INT[3:0]
TXRDY#/RXRDY#
GLOBAL
INTRRUPT
CONTROL
LOGIC
Figure 1: Block Diagram
TRANSMIT
FIFO
REGISTER
FLOW
CONTROL
LOGIC
RECEIVE
FIFO
REGISTER
FLOW
CONTROL
LOGIC
UART 0
INTERRUPT
CONTROL
LOGIC
TRANSMIT
SHIFT
REGISTER
RECEIVE
SHIFT
REGISTER
MODEM
SIGNAL
CONTROL
LOGIC
UART 1
UART 2
UART 3
CLOCK AND
BAUD RATE
GENERATOR
XTAL1
XTAL2
CLKSEL
TXD0
RXD0
RTS0#/DTR0#
CTS0#/DSR0#/DCD0#/RI0#
TXRDY0#/RXRDY0#
TXD1
RXD1
RTS1#/DTR1#
CTS1#/DSR1#/DCD1#/RI1#
TXRDY1#/RXRDY1#
TXD2
RXD2
RTS2#/DTR2#
CTS2#/DSR2#/DCD2#/RI2#
TXRDY2#/RXRDY2#
TXD3
RXD3
RTS3#/DTR3#
CTS3#/DSR3#/DCD3#/RI3#
TXRDY3#/RXRDY3#
Rev. 00
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