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參數資料
型號: W77L32
廠商: WINBOND ELECTRONICS CORP
元件分類: 8位微控制器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8位微控制器
文件頁數: 18/74頁
文件大小: 871K
代理商: W77L32
Preliminary W77L32
- 18 -
RI:
Receive interrupt flag: This flag is set by hardware at the end of the 8th bit time in mode 0, or
halfway through the stop bits time in the other modes during serial reception. However the
restrictions of SM2 apply to this bit. This bit can be cleared only by software
Serial Data Buffer
Bit:
7
6
5
4
3
2
1
0
SBUF.7
SBUF.6
SBUF.5
SBUF.4
SBUF.3
SBUF.2
SBUF.1
SBUF.0
Mnemonic: SBUF
Address: 99h
SBUF.7
0: Serial data on the serial port 0 is read from or written to this location. It actually consists of
two separate internal 8-bit registers. One is the receive resister, and the other is the
transmit buffer. Any read access gets data from the receive data buffer, while write
access is to the transmit data buffer.
Port 2
Bit:
7
6
5
4
3
2
1
0
P2.7
P2.6
P2.5
P2.4
P2.3
P2.2
P2.1
P2.0
Mnemonic: P2
Address: A0h
P2.7
0: Port 2 is a bi-directional I/O port with internal pull-ups. This port also provides the upper
address bits for accesses to external memory.
Port 4
Bit:
7
6
5
4
3
2
1
0
-
-
-
-
P4.3
P4.2
P4.1
P4.0
Mnemonic: P4
Address: A5h
P4.3
0: Port 4 is a bi-directional I/O port with internal pull-ups.
Interrupt Enable
Bit:
7
6
5
4
3
2
1
0
EA
ES1
ET2
ES
ET1
EX1
ET0
EX0
Mnemonic: IE
Address: A8h
EA:
ES1:
ET2:
ES:
ET1:
EX1:
ET0:
EX0:
Global enable. Enable/disable all interrupts.
Enable Serial Port 1 interrupt.
Enable Timer 2 interrupt.
Enable Serial Port 0 interrupt.
Enable Timer 1 interrupt
Enable external interrupt 1
Enable Timer 0 interrupt
Enable external interrupt 0
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