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IC-MNEVALMN1D 参数 Datasheet PDF下载

IC-MNEVALMN1D图片预览
型号: IC-MNEVALMN1D
PDF下载: 下载PDF文件 查看货源
内容描述: 25位游标编码器, 3 -CH 。采样13位仙/ D插值 [25-BIT NONIUS ENCODER WITH 3-CH. SAMPLING 13-BIT Sin/D INTERPOLATION]
分类和应用: 编码器
文件页数/大小: 59 页 / 1705 K
品牌: ICHAUS [ IC-HAUS GMBH ]
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iC-MN 25-BIT NONIUS ENCODER  
WITH 3-CH. SAMPLING 13-BIT Sin/D INTERPOLATION  
Rev D1, Page 52/59  
EEPROM INTERFACE  
CFG_E2P  
Adr 0x40; Bit 2:0  
Banks per area  
(64 bytes each)  
CONF EDS USER EEPROM, Typ  
The serial EEPROM interface consists of the two pins  
SCL and SDA and enables read and write access to a  
serial EEPROM (such as a 24C02 with 128 bytes, 5 V  
type with a 3.3 V function). The data in the EEPROM  
is secured by a CRC to the addresses 0x4E and 0x4F.  
Code  
For SSI applications:  
000*  
001  
Bytes  
128  
256  
2
3
-
1
-
-
1 kbit, C01 up  
2 kbit, C02 up  
For BiSS applications with EDS:  
Application Hints  
010  
011  
100  
101  
110  
111  
Notes  
512  
3
3
3
3
3
3
4
4
12  
4
12  
24  
1
9
1
25  
17  
5
4 kbit, C04 up  
8 kbit, C08 up  
8 kbit, C08 up  
16 kbit, C016 up  
16 kbit, C016 up  
16 kbit, C016 up  
To protect the EEPROM against a reversed power sup-  
ply voltage it can be connected to the integrated supply  
switch (pins VDDA and GNDA). The EEPROM speci-  
fications and absolute maximum ratings should com-  
ply to the pin voltages of VDDA, SCL and SDA during  
startup and operation. A protective circuit may be ad-  
visable depending on the EEPROM model.  
1024  
1024  
2048  
2048  
2048  
*) direct addressing mode  
Table 99: Configuration of external memory  
Direct Addressing  
The registers can be accessed via the I/O interface  
and direct addressing (for CFG_E2P = 000). In ac-  
cordance with the BiSS protocol the number of bytes  
addressed is restricted to 128. Accessing addresses  
0x00 to 0x4F reads or writes to iC-MN’s internal RAM  
register. The data from this special address area can  
only be transmitted to the EEPROM by the command  
WRITE_CONF.  
For EEPROM selection the following minimal require-  
ments must be fulfilled: (e. g. Atmel AT24C01B, 128x8)  
• Operation from 3.3 V to 5 V, I2C-Interface  
• Minimal 1024 bit, 128x8  
The registers for addresses 0x50 to 0x70, 0x78 to  
0x7B and 0x7D to 0x7F are in the EEPROM and can  
be accessed byte-wise by a BiSS register access for  
read or write.  
CRC_E2P(1:0)  
CRC_E2P(9:2)  
Addr. 0x4F; bit 7:6  
Addr. 0x4E; bit 7:0  
Code  
0x000  
. . .  
Description  
CRC formed by CRC polynomial 0x409  
The addresses missing in the above are located in iC-  
MN: the status register from 0x75 to 0x77 (read only),  
the MN_CMD register at 0x77 (write only), and the I/O  
interface parameters CID_SCD and TOS at address  
0x7C. The latter has no access limitations and can  
always be read and written to (content is mirrored to  
0x4C).  
0x3FF  
Table 98: EEPROM Data Check Sum  
Memory Map And Register Access  
Depending on the EEPROM size different bank assign-  
ments can be configured using CFG_E2P. There are  
three areas, placed one after the other, which are des-  
ignated for this purpose in the memory:  
Bank-Wise Addressing  
iC-MN also supports bank-wise addressing (for  
CFG_E2P = 000) according to the BiSS Interface C  
Protocol Description. In this mode of configuration iC-  
MN divides the internal address sections into banks of  
64 bytes each. The address sections visible via the I/O  
interface recognizes a ”dynamic” section (addresses  
0x00 to 0x3F) and a ”static” section which is perma-  
nently visible (addresses 0x40 to 0x7F). The static ad-  
dress section is always independent of the bank cur-  
rently selected. Figure 29 illustrates how the banks  
selected by BANKSEL are addressed.  
1. CONF: iC-MN configuration data  
2. EDS : Electronic Data Sheet  
3. USER: OEM data, free user area