w78e516b Winbond Electronics Corp America, w78e516b Datasheet - Page 12

• Manufacturer Part Number: w78e516b
• Description: 8-bit Microcontroller
• Manufacturer: Winbond Electronics Corp America

P2ECON (AEH)
5.11 Port 4 Base Address Registers
P40AH, P40AL:
The Base address register for comparator of P4.0. P40AH contains the high-order byte of address,
P40AL contains the low-order byte of address.
P41AH, P41AL:
The Base address register for comparator of P4.1. P41AH contains the high-order byte of address,
P41AL contains the low-order byte of address.
P42AH, P42AL:
The Base address register for comparator of P4.2. P42AH contains the high-order byte of address,
P42AL contains the low-order byte of address.
P43AH, P43AL:
The Base address register for comparator of P4.3. P43AH contains the high-order byte of address,
P43AL contains the low-order byte of address.
BIT
7
6
5
5
4
3
2
1
0
P41CSINV The similarity definition as P43SINV.
P40CSINV The similarity definition as P43SINV.
P43CSINV
P42CSINV The similarity definition as P43SINV.
P41CSINV The similarity definition as P43SINV.
NAME
-
-
-
-
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
= 0: P4.3 is active low when pin P4.3 is defined as read and/or write strobe
Reserve
Reserve
0
0
signal.
signal.
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FUNCTION
Publication Release Date: April 22, 2008
W78E516B
Revision A12