16Z125_UART - UART Controller IP Core

Size

Quad UART
• Logic elements (Altera® Cyclone® device family): 1800 typ.
• Pin count min: 8 (4 receive lines and 4 transmit lines)
• Pin count max: 36

Triple UART
• Logic elements (Altera® Cyclone® device family): 1300 typ.
• Pin count min: 6 (3 receive lines and 3 transmit lines)
• Pin count max: 27

Dual UART
• Logic elements (Altera® Cyclone® device family): 1000 typ.
• Pin count min: 4 (2 receive lines and 2 transmit lines)
• Pin count max: 18

Single UART
• Logic elements (Altera® Cyclone® device family): 700 typ.
• Pin count min: 2 (1 receive line and 1 transmit line)
• Pin count max: 9

RAM: 1 x M4K (Cyclone® I and II) or 1 x M9K (Cyclone® III)

(2x M4K (Cyclone® I and II) or 1 x M9K (Cyclone® III) for 124-byte buffer)

System-Bus Interface

Wishbone bus interface compliant with Wishbone Specification B.3

32-bit data transfer, 33MHz or 66MHz bus frequency

Supported Wishbone bus cycles
• Single read/write

UART Functionality

Quad UART

16550D compatible

RS232 or RS422/RS485 mode (switchable by software)

Full or half-duplex (switchable by software)

Data rates up to 3Mbit/s

60-byte transmit/receive buffer (124-byte buffer on request)

Handshake lines: CTS, RTS; DCD, DSR, DTR; RI; full support, reduced handshake for lower pin count

Automatic RTS/CTS flow control for RS232 on request