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W78E58BP Datasheet(PDF) 9 Page - Winbond |
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W78E58BP Datasheet(HTML) 9 Page - Winbond |
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9 / 31 page  W78E58B Publication Release Date: March 18, 2002 - 9 - Revision A3 P4CONB (C3H), continued BIT NAME FUNCTION 5, 4 P43CMP1 P43CMP0 Chip-select signals address comparison: 00: Compare the full address (16 bits length) with the base address register P43AH, P43AL. 01: Compare the 15 high bits (A15 − A1) of address bus with the base address register P43AH, P43AL. 10: Compare the 14 high bits (A15 − A2) of address bus with the base address register P43AH, P43AL. 11: Compare the 8 high bits (A15 − A8) of address bus with the base address register P43AH, P43AL. 3, 2 P42FUN1 P42FUN0 The P4.2 function control bits which are the similar definition as P43FUN1, P43FUN0. 1, 0 P42CMP1 P42CMP0 The P4.2 address comparator length control bits which are the similar definition as P43CMP1, P43CMP0. P4CONA (C2H) BIT NAME FUNCTION 7, 6 P41FUN1 P41FUN0 The P4.1 function control bits which are the similar definition as P43FUN1, P43FUN0. 5, 4 P41CMP1 P41CMP0 The P4.1 address comparator length control bits which are the similar definition as P43CMP1, P43CMP0. 3, 2 P40FUN1 P40FUN0 The P4.0 function control bits which are the similar definition as P43FUN1, P43FUN0. 1, 0 P40CMP1 P40CMP0 The P4.0 address comparator length control bits which are the similar definition as P43CMP1, P43CMP0. P2ECON (AEH) BIT NAME FUNCTION 7 P43CSINV The active polarity of P4.3 when pin P4.3 is defined as read and/or write strobe signal. 1: P4.3 is active high when pin P4.3 is defined as read and/or write strobe signal. 0: P4.3 is active low when pin P4.3 is defined as read and/or write strobe signal. 6 P42CSINV The similarity definition as P43SINV. 5 P41CSINV The similarity definition as P43SINV. 4 P40CSINV The similarity definition as P43SINV. 3 - Reserve 2 - Reserve 1 - 0 0 - 0 |
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