欢迎访问ic37.com |
会员登录 免费注册
发布采购

71M6543H 参数 Datasheet PDF下载

71M6543H图片预览
型号: 71M6543H
PDF下载: 下载PDF文件 查看货源
内容描述: 可选增益1或8的一个电流电能表计量芯片的补偿 [Selectable Gain of 1 or 8 for One Current Energy Meter ICs Metrology Compensation]
分类和应用:
文件页数/大小: 157 页 / 2164 K
品牌: MAXIM [ MAXIM INTEGRATED PRODUCTS ]
 浏览型号71M6543H的Datasheet PDF文件第28页浏览型号71M6543H的Datasheet PDF文件第29页浏览型号71M6543H的Datasheet PDF文件第30页浏览型号71M6543H的Datasheet PDF文件第31页浏览型号71M6543H的Datasheet PDF文件第33页浏览型号71M6543H的Datasheet PDF文件第34页浏览型号71M6543H的Datasheet PDF文件第35页浏览型号71M6543H的Datasheet PDF文件第36页  
71M6543F/H and 71M6543G/GH Data Sheet  
An alternative data pointer is available in the form of the PDATA register (SFR 0xBF), sometimes referred  
to as USR2). It defines the high byte of a 16-bit address when reading or writing XDATA with the instruction  
MOVX A,@Ri or MOVX @Ri,A.  
Internal Data Memory Map and Access  
The Internal data memory provides 256 bytes (0x00 to 0xFF) of data memory. The internal data memory  
address is always 1 byte wide. Table 10 shows the internal data memory map.  
The Special Function Registers (SFR) occupy the upper 128 bytes. The SFR area of internal data memory  
is available only by direct addressing. Indirect addressing of this area accesses the upper 128 bytes of  
Internal RAM. The lower 128 bytes contain working registers and bit addressable memory. The lower 32  
bytes form four banks of eight registers (R0-R7). Two bits on the program memory status word (PSW, SFR  
0xD0 ) select which bank is in use. The next 16 bytes form a block of bit addressable memory space at  
addresses 0x00-0x7F. All of the bytes in the lower 128 bytes are accessible through direct or indirect  
addressing.  
Table 10: Internal Data Memory Map  
Address Range  
Direct Addressing  
Indirect Addressing  
0x80  
0x30  
0xFF  
0x7F  
Special Function Registers (SFRs)  
RAM  
Byte addressable area  
0x20  
0x00  
0x2F  
0x1F  
Bit addressable area  
Register banks R0…R7  
2.4.2 Special Function Registers (SFRs)  
A map of the Special Function Registers is shown in Table 11.  
Only a few addresses in the SFR memory space are occupied, the others are not implemented. A read  
access to unimplemented addresses returns undefined data, while a write access has no effect. SFRs  
specific to the 71M6543 are shown in bold print on a gray field. The registers at 0x80, 0x88, 0x90, etc.,  
are bit addressable, all others are byte addressable.  
Table 11: Special Function Register Map  
Bit  
Byte Addressable  
Hex/  
Bin  
Bin/  
Hex  
Addressable  
X000  
INTBITS  
B
X001  
X010  
X011  
X100  
X101  
X110  
X111  
F8  
F0  
E8  
E0  
D8  
D0  
C8  
C0  
B8  
B0  
A8  
A0  
98  
90  
88  
80  
FF  
F7  
EF  
E7  
DF  
D7  
CF  
C7  
BF  
B7  
AF  
A7  
9F  
97  
VSTAT  
RCMD SPI_CMD  
IFLAGS  
A
WDCON  
PSW  
T2CON  
IRCON  
IEN1  
P3  
IP1  
S0RELH S1RELH  
FLSHCTL  
S0RELL  
PDATA  
FL_BANK PGADR  
IEN0  
P2  
IP0  
DIR2  
S0BUF  
DIR1  
TMOD  
SP  
DIR0  
S0CON  
P1  
IEN2  
DPS  
TL0  
S1CON  
S1BUF S1RELL  
EEDATA EECTRL  
ERASE  
TCON  
P0  
TL1  
TH0  
TH1  
CKCON  
PCON  
8F  
87  
DPL  
DPH  
DPL1  
DPH1  
32  
© 2008–2011 Teridian Semiconductor Corporation  
v1.2