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AM1808AZCED3 Datasheet(PDF) 177 Page - Texas Instruments |
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AM1808AZCED3 Datasheet(HTML) 177 Page - Texas Instruments |
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177 / 264 page  AM1808 www.ti.com SPRS653A – FEBRUARY 2010 – REVISED APRIL 2010 6.19 Universal Asynchronous Receiver/Transmitter (UART) Each UART has the following features: • 16-byte storage space for both the transmitter and receiver FIFOs • 1, 4, 8, or 14 byte selectable receiver FIFO trigger level for autoflow control and DMA • DMA signaling capability for both received and transmitted data • Programmable auto-rts and auto-cts for autoflow control • Programmable Baud Rate up to 3MBaud • Programmable Oversampling Options of x13 and x16 • Frequency pre-scale values from 1 to 65,535 to generate appropriate baud rates • Prioritized interrupts • Programmable serial data formats – 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 • Internal diagnostic capabilities – Loopback controls for communications link fault isolation – Break, parity, overrun, and framing error simulation • Modem control functions (CTS, RTS) The UART registers are listed in Section 6.19.1 6.19.1 UART Peripheral Registers Description(s) Table 6-87 is the list of UART registers. Table 6-87. UART Registers UART0 UART1 UART2 ACRONYM REGISTER DESCRIPTION BYTE ADDRESS BYTE ADDRESS BYTE ADDRESS 0x01C4 2000 0x01D0 C000 0x01D0 D000 RBR Receiver Buffer Register (read only) 0x01C4 2000 0x01D0 C000 0x01D0 D000 THR Transmitter Holding Register (write only) 0x01C4 2004 0x01D0 C004 0x01D0 D004 IER Interrupt Enable Register 0x01C4 2008 0x01D0 C008 0x01D0 D008 IIR Interrupt Identification Register (read only) 0x01C4 2008 0x01D0 C008 0x01D0 D008 FCR FIFO Control Register (write only) 0x01C4 200C 0x01D0 C00C 0x01D0 D00C LCR Line Control Register 0x01C4 2010 0x01D0 C010 0x01D0 D010 MCR Modem Control Register 0x01C4 2014 0x01D0 C014 0x01D0 D014 LSR Line Status Register 0x01C4 2018 0x01D0 C018 0x01D0 D018 MSR Modem Status Register 0x01C4 201C 0x01D0 C01C 0x01D0 D01C SCR Scratchpad Register 0x01C4 2020 0x01D0 C020 0x01D0 D020 DLL Divisor LSB Latch 0x01C4 2024 0x01D0 C024 0x01D0 D024 DLH Divisor MSB Latch 0x01C4 2028 0x01D0 C028 0x01D0 D028 REVID1 Revision Identification Register 1 0x01C4 2030 0x01D0 C030 0x01D0 D030 PWREMU_MGMT Power and Emulation Management Register 0x01C4 2034 0x01D0 C034 0x01D0 D034 MDR Mode Definition Register Copyright © 2010, Texas Instruments Incorporated Peripheral Information and Electrical Specifications 177 Submit Documentation Feedback Product Folder Link(s): AM1808 |
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