w77e58 Winbond Electronics Corp America, w77e58 Datasheet - Page 20

• Manufacturer Part Number: w77e58
• Description: 8 Bit Microcontroller
• Manufacturer: Winbond Electronics Corp America

SLAVE ADDRESS
SADDR: The SADDR should be programmed to the given or broadcast address for serial port 0 to
SLAVE ADDRESS 1
SADDR1: The SADDR1 should be programmed to the given or broadcast address for serial port 1 to
PORT 3
P3.7-0: General purpose I/O port. Each pin also has an alternate input or output function. The
INTERRUPT PRIORITY
alternate functions are described below.
which the slave processor is designated.
which the slave processor is designated.
Mnemonic: SADDR1
Mnemonic: SADDR
Mnemonic: P3
Mnemonic: IP
P3.7
P3.6
P3.5
P3.4
P3.3
P3.2
P3.1
P3.0
Bit:
Bit:
Bit:
Bit:
T1
T0
TxD
RxD
RD
INT1
INT0
WR
P3.7
7
7
7
7
-
Strobe for read from external RAM
Strobe for write to external RAM
Timer/counter 1 external count input
Timer/counter 0 external count input
External interrupt 1
External interrupt 0
Serial port 0 output
Serial port 0 input
P3.6
PS1
6
6
6
6
P3.5
PT2
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5
5
5
5
P3.4
PS
4
4
4
4
Preliminary W77E58
P3.3
PT1
3
3
3
3
Address: AAh
Address: A9h
Address: B0h
Address: B8h
P3.2
PX1
2
2
2
2
P3.1
PT0
1
1
1
1
P3.0
PX0
0
0
0
0