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W77L058A Datasheet(PDF) 9 Page - Winbond |
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W77L058A Datasheet(HTML) 9 Page - Winbond |
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9 / 82 page  W77LE58/W77L058A Publication Release Date: February 1, 2007 - 9 - Revision A7 Table 1. Special Function Register Location Table F8 EIP F0 B E8 EIE E0 ACC D8 WDCON D0 PSW C8 T2CON T2MOD RCAP2L RCAP2H TL2 TH2 C0 SCON1 SBUF1 ROMMAP PMR STATUS TA B8 IP SADEN SADEN1 B0 P3 A8 IE SADDR SADDR1 A0 P2 P4 98 SCON0 SBUF 90 P1 EXIF 88 TCON TMOD TL0 TL1 TH0 TH1 CKCON 80 P0 SP DPL DPH DPL1 DPH1 DPS PCON Note: The SFRs in the column with dark borders are bit-addressable. A brief description of the SFRs now follows. Port 0 Bit: 7 6 5 4 3 2 1 0 P0.7 P0.6 P0.5 P0.4 P0.3 P0.2 P0.1 P0.0 Mnemonic: P0 Address: 80h Port 0 is an open-drain bi-directional I/O port. This port also provides a multiplexed low order address/data bus during accesses to external memory. Stack Pointer Bit: 7 6 5 4 3 2 1 0 SP.7 SP.6 SP.5 SP.4 SP.3 SP.2 SP.1 SP.0 Mnemonic: SP Address: 81h The Stack Pointer stores the Scratchpad RAM address where the stack begins. In other words, it always points to the top of the stack. |
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