參數(shù)資料
型號: W78ERD2A40PL
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQCC44
封裝: ROHS COMPLIANT, PLASTIC, LCC-44
文件頁數(shù): 15/76頁
文件大小: 650K
代理商: W78ERD2A40PL
W78ERD2/W78ERD2A
Publication Release Date: February 14, 2007
- 15 -
Revision A10
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
BIT
NAME
FUNCTION
7~0
SBUF
Serial port data is read from or written to this location. It actually consists of two
separate, internal 8-bit registers, the receive register and the transmit buffer. Any
read access reads data from the receive register, while write access writes to the
transmit 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
Ram High Byte Address
Bit:
7
0
6
0
5
0
4
0
3
0
2
0
1
0
XRAMAH.1 XRAMAH.0
Mnemonic: XRAMAH Address: A1h
The AUX-RAM high byte address
Auxiliary 1 Register
Bit:
7
6
5
4
3
2
1
0
-
-
-
-
GF2
0
-
DPS
Mnemonic: AUXR1 Address: A2h
BIT
NAME
FUNCTION
7~4
-
Reserved
3
GF2
General purpose, user–defined flag.
2
0
The bit cannot be written and is always read as 0.
1
-
Reserved
0
DPS
0 = switch to DPTR0
1 = switch to DPTR1
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