W77C32F-40 Nuvoton Technology Corporation of America, W77C32F-40 Datasheet - Page 20

• Manufacturer Part Number: W77C32F-40
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W77C32F-40

• Lead Free Status / Rohs Status: Supplier Unconfirmed

P3.7-0: General purpose I/O port. Each pin also has an alternate input or output function. The
Interrupt Priority
IP.7: This bit is un-implemented and will read high.
PS1: This bit defines the Serial port 1 interrupt priority.
PT2: This bit defines the Timer 2 interrupt priority.
PS:
PT1: This bit defines the Timer 1 interrupt priority.
PX1: This bit defines the External interrupt 1 priority.
PT0: This bit defines the Timer 0 interrupt priority.
PX0: This bit defines the External interrupt 0 priority.
Slave Address Mask Enable
SADEN: This register enables the Automatic Address Recognition feature of the Serial port 0. When
Slave Address Mask Enable 1
SADEN1:This register enables the Automatic Address Recognition feature of the Serial port 1. When
This bit defines the Serial port 0 interrupt priority.
alternate functions are described below.
a bit in the SADEN is set to 1, the same bit location in SADDR will be compared with the
incoming serial data. When SADEN.n is 0, then the bit becomes a "don't care" in the
comparison. This register enables the Automatic Address Recognition feature of the Serial
port 0. When all the bits of SADEN are 0, interrupt will occur for any incoming address.
a bit in the SADEN1 is set to 1, the same bit location in SADDR1 will be compared with the
incoming serial data. When SADEN1.n is 0, then the bit becomes a "don't care" in the
Mnemonic: SADEN
P3.7 RD
P3.6 WR Strobe for write to external RAM
P3.5 T1
P3.4 T0
P3.3 INT1 External interrupt 1
P3.2 INT0 External interrupt 0
P3.1 TxD Serial port 0 output
P3.0 RxD Serial port 0 input
Mnemonic: SADEN1
Mnemonic: IP
Bit:
Bit:
Bit:
Strobe for read from external RAM
Timer/counter 1 external count input
Timer/counter 0 external count input
7
7
7
-
PS1
6
6
6
PT2
- 20 -
5
5
5
PS = 1 sets it to higher priority level.
PS = 1 sets it to higher priority level.
PT1 = 1 sets it to higher priority level.
PX1 = 1 sets it to higher priority level.
PT0 = 1 sets it to higher priority level.
PX0 = 1 sets it to higher priority level.
PS
4
4
4
PT2 = 1 sets it to higher priority level.
PT1
3
3
3
W77C32/W77C032
Address: BAh
Address: B8h
PX1
Address: B9h
2
2
2
PT0
1
1
1
PX0
0
0
0