Datenblatt-Suchmaschine für elektronische Bauteile |
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ST16C1450CJ28 Datenblatt(PDF) 11 Page - Exar Corporation |
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ST16C1450CJ28 Datenblatt(HTML) 11 Page - Exar Corporation |
11 / 28 page xr ST16C1450 REV. 4.2.1 2.97V TO 5.5V UART 11 . TABLE 3: INTERNAL REGISTERS DESCRIPTION. SHADED BITS ARE ENABLED WHEN EFR BIT-4=1 ADDRESS A2-A0 REG NAME READ/ WRITE BIT-7 BIT-6 BIT-5 BIT-4 BIT-3 BIT-2 BIT-1 BIT-0 COMMENT 16C550 Compatible Registers 0 0 0 RHR RD Bit-7 Bit-6 Bit-5 Bit-4 Bit-3 Bit-2 Bit-1 Bit-0 LCR[7] = 0 0 0 0 THR WR Bit-7 Bit-6 Bit-5 Bit-4 Bit-3 Bit-2 Bit-1 Bit-0 0 0 1 IER RD/WR 0 0 Special Mode Enable (Enable MCR bits 7, 2) 0 Modem Status Int. Enable RX Line Status Int. Enable TX Empty Int. Enable RX Data Int. Enable 0 1 0 ISR RD 0 0 0 0 INT Source Bit-3 INT Source Bit-2 INT Source Bit-1 INT Source Bit-0 0 1 1 LCR RD/WR Divisor Enable Set TX Break Set Parity Even Parity Parity Enable Stop Bits Word Length Bit-1 Word Length Bit-0 1 0 0 MCR RD/WR 0/ 0 0 Internal Loop- back Enable (OP2#)/ INT Output Enable (OP1#)/ RTS# Output Control DTR# Output Control LCR[7] = 0 Power Down Mode SOFT Reset 1 0 1 LSR RD 0 THR & TSR Empty THR Empty RX Break RX Framing Error RX Parity Error RX Over- run Error RX Data Ready 1 1 0 MSR RD CD# Input RI# Input DSR# Input CTS# Input Delta CD# Delta RI# Delta DSR# Delta CTS# 1 1 1 SPR RD/WR Bit-7 Bit-6 Bit-5 Bit-4 Bit-3 Bit-2 Bit-1 Bit-0 Baud Rate Generator Divisor 0 0 0 DLL RD/WR Bit-7 Bit-6 Bit-5 Bit-4 Bit-3 Bit-2 Bit-1 Bit-0 LCR[7] = 1 0 0 1 DLM RD/WR Bit-7 Bit-6 Bit-5 Bit-4 Bit-3 Bit-2 Bit-1 Bit-0 |
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