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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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AT89LP428 Arkusz danych(PDF) 15 Page - ATMEL Corporation |
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AT89LP428 Arkusz danych(HTML) 15 Page - ATMEL Corporation |
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15 / 149 page  15 3654A–MICRO–8/09 AT89LP428/828 4. Special Function Registers A map of the on-chip memory area called the Special Function Register (SFR) space is shown in Table 4-1. Note that not all of the addresses are occupied, and unoccupied addresses may not be implemented on the chip. Read accesses to these addresses will in general return random data, and write accesses will have an indeterminate effect. User software should not write to these unlisted locations, since they may be used in future products to invoke new features. Notes:1. All SFRs in the left-most column are bit-addressable. 2. Reset value is 1111 1111B when Tristate-port Fuse is enabled and 0000 0000B when disabled. Table 4-1. AT89LP428/828 SFR Map and Reset Values 89 A B C D E F 0F8H 0FFH 0F0H B 0000 0000 0F7H 0E8H SPSR 000x x000 SPCR 0000 0000 SPDR xxxx xxxx 0EFH 0E0H ACC 0000 0000 0E7H 0D8H 0DFH 0D0H PSW 0000 0000 T2CCA 0000 0000 T2CCL 0000 0000 T2CCH 0000 0000 T2CCC 0000 0000 T2CCF 0000 0000 0D7H 0C8H T2CON 0000 0000 T2MOD 0000 0000 RCAP2L 0000 000 RCAP2H 0000 0000 TL2 0000 000 TH2 0000 0000 0CFH 0C0H P4 xx11 1111 P1M0(2) P1M1 0000 0000 P2M0(2) P2M1 0000 0000 P3M0(2) P3M1 0000 0000 0C7H 0B8H IP 0000 0000 SADEN 0000 0000 P4M0(2) P4M1 xx00 0000 0BFH 0B0H P3 1111 1111 IE2 xxxx x000 IP2 xxxx x000 IP2H xxxx x000 IPH 0000 0000 0B7H 0A8H IE 0000 0000 SADDR 0000 0000 AREF 0000 0000 0AFH 0A0H P2 1111 1111 DPCF 0000 00x0 WDTRST (write-only) WDTCON 0000 x000 0A7H 98H SCON 0000 0000 SBUF xxxx xxxx GPMOD 0000 0000 GPLS 0000 0000 GPIEN 0000 0000 GPIF 0000 0000 ACSRB 1100 0000 9FH 90H P1 1111 1111 TCONB 0010 0100 RL0 0000 0000 RL1 0000 0000 RH0 0000 0000 RH1 0000 0000 MEMCON 0000 00xx ACSRA 0000 0000 97H 88H TCON 0000 0000 TMOD 0000 0000 TL0 0000 0000 TL1 0000 0000 TH0 0000 0000 TH1 0000 0000 CLKREG 0000 x000 8FH 80H SP 0000 0111 DP0L 0000 0000 DP0H 0000 0000 DP1L 0000 0000 DP1H 0000 0000 PAGE xxxx xxx0 PCON 0000 0000 87H 0 123 456 7 |
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