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89LPC925 Datasheet(PDF) 12 Page - NXP Semiconductors |
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89LPC925 Datasheet(HTML) 12 Page - NXP Semiconductors |
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12 / 49 page  xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx P0* Port 0 80H T1/KB7 CMP1 /KB6 CMPREF /KB5 CIN1A /KB4 CIN1B /KB3 CIN2A /KB2 CIN2B /KB1 CMP2 /KB0 [1] Bit address 97 96 95 94 93 92 91 90 P1* Port 1 90H - - RST INT1 INT0/ SDA T0/SCL RXD TXD [1] Bit address B7 B6 B5 B4 B3 B2 B1 B0 P3* Port 3 B0H - - - - - - XTAL1 XTAL2 [1] P0M1 Port 0 output mode 1 84H (P0M1.7) (P0M1.6) (P0M1.5) (P0M1.4) (P0M1.3) (P0M1.2) (P0M1.1) (P0M1.0) FF 11111111 P0M2 Port 0 output mode 2 85H (P0M2.7) (P0M2.6) (P0M2.5) (P0M2.4) (P0M2.3) (P0M2.2) (P0M2.1) (P0M2.0) 00 00000000 P1M1 Port 1 output mode 1 91H (P1M1.7) (P1M1.6) - (P1M1.4) (P1M1.3) (P1M1.2) (P1M1.1) (P1M1.0) D3[1] 11x1xx11 P1M2 Port 1 output mode 2 92H (P1M2.7) (P1M2.6) - (P1M2.4) (P1M2.3) (P1M2.2) (P1M2.1) (P1M2.0) 00[1] 00x0xx00 P3M1 Port 3 output mode 1 B1H - - - - - - (P3M1.1) (P3M1.0) 03[1] xxxxxx11 P3M2 Port 3 output mode 2 B2H - - - - - - (P3M2.1) (P3M2.0) 00[1] xxxxxx00 PCON Power control register 87H SMOD1 SMOD0 BOPD BOI GF1 GF0 PMOD1 PMOD0 00 00000000 PCONA Power control register A B5H RTCPD - VCPD ADPD I2PD - SPD - 00[1] 00000000 Bit address D7 D6 D5 D4 D3 D2 D1 D0 PSW* Program status word D0H CY AC F0 RS1 RS0 OV F1 P 00H 00000000 PT0AD Port 0 digital input disable F6H - - PT0AD.5 PT0AD.4 PT0AD.3 PT0AD.2 PT0AD.1 - 00H xx00000x RSTSRC Reset source register DFH - - BOF POF R_BK R_WD R_SF R_EX [3] RTCCON Real-time clock control D1H RTCF RTCS1 RTCS0 - - - ERTC RTCEN 60[1][6] RTCH Real-time clock register HIGH D2H 00[6] 00000000 RTCL Real-time clock register LOW D3H 00[6] 00000000 SADDR Serial port address register A9H 00 00000000 SADEN Serial port address enable B9H 00 00000000 SBUF Serial Port data buffer register 99H xx xxxxxxxx Bit address 9F 9E 9D 9C 9B 9A 99 98 SCON* Serial port control 98H SM0/FE SM1 SM2 REN TB8 RB8 TI RI 00 00000000 Table 4: Special function registers…continued * indicates SFRs that are bit addressable. Name Description SFR addr. Bit functions and addresses Reset value MSB LSB Hex Binary |
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