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GM16C550 Datasheet(PDF) 1 Page - Hynix Semiconductor |
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GM16C550 Datasheet(HTML) 1 Page - Hynix Semiconductor |
1 / 22 page GM16C550 1 GM16C550 ASYNCHRONOUS COMMUNICATIONS ELEMENT WITH FIFOs Descriptions The GM16C550 is an asynchronous communi- cations element (ACE) that is functionally equivalent to the GM16C450, and addition-ally incorporates a 16byte FIFOs are available on both the transmitter and receiver, and can be activated by placing the device in the FIFO mode. After a reset, the registers of the GM16C550 are identical to those of the GM16C450. The UART performs serial-to-parallel conver- sion on data characters received from a peri-pheral device or a MODEM, and parallel-to- serial conversion on data characters received from the CPU. The CPU can read the com- plete status of the UART at any time during the functional operation. Status information reported includes the type and condition of the transfer operations being performed by the UART, as well as any error conditions (parity, overrun, framing, or break interrupt). Pin Configulation Features l Fully compatible with GM16C450. l Modem controm signals include CTS , RTS , DSR , DTR , RI and - DCD . l Programmable serial characteristics: —5-, 6-, 7- or 8-bit characters — Even-, odd-, or no-parity bit generation and detection —1-, 11/2- or 2-stop bit generation — Baud rate generation (DC to 256K baud) l 16 byte FIFO reduces CPU interrupts. l Independent control of transmit, receive, line status, data set interrupts, FIFOs. l Full status reporting capabilities l Three-state, TTL drive capabilities for bi- derectional data bus and control bus. l 40DIP/44PLCC D0 D1 D2 D3 D4 D5 D6 D7 RCLK SIN SOUT CS0 CS1 CS2 BAUDQUT XTAL1 XTAL2 DOSTR DOSTR VSS VCC RI DCD DSR CTS MR OUT1 DTR RTS OUT2 INTRPT RXRDY A0 A1 A2 ADS DISTR DISTR DDIS TXRDY D6 D5 D7 RCLK SIN N.C. SOUT CS0 CS1 CS2 BAUDQUT A1 A2 A0 RXRDY INTRPT N.C. OUT2 RTS DTR OUT1 MR |
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