W78E516DDG Datasheet, PDF (27/90 Pages) Nuvotem Talema – 8-BIT MICROCONTROLLER

W78E516D/W78E058D Data Sheet
BIT NAME
FUNCTION
7-0 P42AL.[7:0] The Base address register for comparator of P4.2. P42AL contains the low-
order byte of address.
P4.2 Base Address High Byte Register
Bit: 7
6
5
4
3
2
1
0
P42AH.7 P42AH.6 P42AH.5 P42AH.4 P42AH.3 P42AH.2 P42AH.1 P42AH.0
Mnemonic:P42AH
Address: ADh
BIT NAME
FUNCTION
7-0 P42AH.[7:0] The Base address register for comparator of P4.2. P42AH contains the High-
order byte of address.
Port 2 Expanded Control
Bit: 7
6
5
4
3
2
1
0
P43CSIN
P42CSIN
P41CSIN
P40CSIN
-
-
-
-
Mnemonic: P2ECON
Address: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.
Port 3
Bit: 7
6
5
4
3
2
1
0
P3.7
P3.6
P3.5
P3.4
P3.3
P3.2
P3.1
P3.0
Mnemonic: P3
Address: B0h
P3.7-0: General purpose Input/Output port. Most instructions will read the port pins in case of a port
read access, however in case of read-modify-write instructions, the port latch is read. These alter-
nate functions are described below:
BIT NAME
FUNCTION
7 P3.7
RD
6 P3.6
WR
5 P3.5
T1
4 P3.4
T0
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Publication Release Date: Feb 15, 2011
Revision A09