w78le58 Winbond Electronics Corp America, w78le58 Datasheet - Page 9

• Manufacturer Part Number: w78le58
• Description: 8-bit Microcontroller
• Manufacturer: Winbond Electronics Corp America

P4CONB (C3H), continued
P4CONA (C2H)
P2ECON (AEH)
BIT
5, 4
3, 2
1, 0
BIT
7, 6
5, 4
3, 2
BIT
1, 0
7
6
5
4
3
2
1
0
P43CMP1
P43CMP0
P42CMP1
P42CMP0
P42FUN1
P42FUN0
P41CMP1
P41CMP0
P40CMP1
P40CMP0
P43CSINV The active polarity of P4.3 when pin P4.3 is defined as read and/or write strobe
P42CSINV The similarity definition as P43SINV.
P41CSINV The similarity definition as P43SINV.
P40CSINV The similarity definition as P43SINV.
P41FUN1
P41FUN0
P40FUN1
P40FUN0
NAME
NAME
NAME
-
-
-
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Chip-select signals address comparison:
00: Compare the full address (16 bits length) with the base address register
01: Compare the 15 high bits (A15 A1) of address bus with the base address
10: Compare the 14 high bits (A15 A2) of address bus with the base address
11: Compare the 8 high bits (A15 A8) of address bus with the base address
The P4.2 function control bits which are the similar definition as P43FUN1,
P43FUN0.
The P4.2 address comparator length control bits which are the similar
definition as P43CMP1, P43CMP0.
The P4.1 function control bits which are the similar definition as P43FUN1,
P43FUN0.
The P4.1 address comparator length control bits which are the similar
definition as P43CMP1, P43CMP0.
The P4.0 function control bits which are the similar definition as P43FUN1,
P43FUN0.
The P4.0 address comparator length control bits which are the similar
definition as P43CMP1, P43CMP0.
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.
Reserve
Reserve
0
0
P43AH, P43AL.
register P43AH, P43AL.
register P43AH, P43AL.
register P43AH, P43AL.
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FUNCTION
FUNCTION
FUNCTION
Preliminary W78LE58
Publication Release Date: June 2000
Revision A1