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MPC82L54AS2 参数 Datasheet PDF下载

MPC82L54AS2图片预览
型号: MPC82L54AS2
PDF下载: 下载PDF文件 查看货源
内容描述: 8位微控制器 [8-bit micro-controller]
分类和应用: 微控制器
文件页数/大小: 74 页 / 1587 K
品牌: MEGAWIN [ MEGAWIN TECHNOLOGY CO., LTD ]
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Functional Description  
I/O Port Configuration  
All 27 port pins on MPC82x54A may be independently configured to one of four modes:  
quasi-bidirectional (standard 8051 port output), push-pull output, open-drain output or  
input-only. All port pins default to quasi-bidirectional after reset. Each port pin has a  
Schmitt-triggered input for improved input noise rejection. During power-down, all the  
Schmitt-triggered inputs are disabled with the exception of P3.2 and P3.3, which may be used  
to wake-up the device. Therefore P3.2 and P3.3 should not be left floating during  
power-down.  
There are several special function registers designed to configure those I/O ports.  
SFR: P0M0 (P0 Configuration 0)  
Bit-7  
Bit-6  
Bit-5  
Bit-4  
Bit-3  
Bit-2  
Bit-1  
Bit-0  
-
-
-
-
P0M03  
P0M02  
P0M01  
P0M00  
SFR: P0M1 (P0 Configuration 1)  
Bit-7  
Bit-6  
Bit-5  
Bit-4  
Bit-3  
Bit-2  
Bit-1  
Bit-0  
-
-
-
-
P0M13  
P0M12  
P0M11  
P0M10  
SFR: P1M0 (P1 Configuration 0)  
Bit-7  
Bit-6  
Bit-5  
Bit-4  
Bit-3  
Bit-2  
Bit-1  
Bit-0  
P1M07  
P1M06  
P1M05  
P1M04  
P1M03  
P1M02  
P1M01  
P1M00  
SFR: P1M1 (P1 Configuration 1)  
Bit-7  
Bit-6  
Bit-5  
Bit-4  
Bit-3  
Bit-2  
Bit-1  
Bit-0  
P1M17  
P1M16  
P1M15  
P1M14  
P1M13  
P1M12  
P1M11  
P1M10  
SFR: P2M0 (P2 Configuration 0)  
Bit-7  
Bit-6  
Bit-5  
Bit-4  
Bit-3  
Bit-2  
Bit-1  
Bit-0  
P2M07  
P2M06  
P2M05  
P2M04  
P2M03  
P2M02  
P2M01  
P2M00  
SFR: P2M1 (P2 Configuration 1)  
Bit-7  
Bit-6  
Bit-5  
Bit-4  
Bit-3  
Bit-2  
Bit-1  
Bit-0  
P2M17  
P2M16  
P2M15  
P2M14  
P2M13  
P2M12  
P2M11  
P2M10  
SFR: P3M0 (P3 Configuration 0)  
Bit-7  
Bit-6  
Bit-5  
Bit-4  
Bit-3  
Bit-2  
Bit-1  
Bit-0  
P3M07  
P3M06  
P3M05  
P3M04  
P3M03  
P3M02  
P3M01  
P3M00  
20  
MPC82x54A Data Sheet  
MEGAWIN  
 
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