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CS8900A-IQ 参数 Datasheet PDF下载

CS8900A-IQ图片预览
型号: CS8900A-IQ
PDF下载: 下载PDF文件 查看货源
内容描述: 水晶局域网? ISA以太网控制器 [Crystal LAN ⑩ ISA Ethernet Controller]
分类和应用: 控制器局域网以太网
文件页数/大小: 128 页 / 1360 K
品牌: CIRRUS [ CIRRUS LOGIC ]
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CS8900A  
Crystal LAN™ ISA Ethernet Controller  
4.3.11 EEPROM Command  
(Read/Write, Address: PacketPage base + 0040h)  
7
6
5
4
3
2
1
0
ADD7 to ADD0  
F
E
D
C
B
A
9
8
Reserved  
ELSEL  
OB1  
OB0  
This register is used to control the reading, writing and erasing of the EEPROM. See Section 3.5.  
ADD7-ADD0  
OB1,OB0  
ELSEL  
Address of the EEPROM word being accessed.  
Indicates the Opcode of the command being executed. See Table 7.  
External logic select: When clear, the EECS pin is used to select the EEPROM. When set, the  
ELCS pin is used to select the external LA decode circuit.  
Reserved  
Reserved and must be written as 0.  
Reset value is: XXXX XXXX XXXX XXXX  
4.3.12 EEPROM Data  
(Read/Write, Address: PacketPage base + 0042h)  
Address 0043h  
Address 0042h  
Most significant byte of the EEPROM data.  
Least significant byte of the EEPROM data.  
This register contains the word being written to, or read from, the EEPROM. See Section 3.5 on page 24.  
Reset value is: XXXX XXXX XXXX XXXX  
4.3.13 Receive Frame Byte Counter  
(Read only, Address: PacketPage base + 0050h)  
Address 0051h  
Address 0050h  
Most significant byte of the byte count.  
Least significant byte of the byte count.  
This register contains the count of the total number bytes received in the the current received frame. This count con-  
tinuously increments as more bytes in this frame are received. See Section 5.2.9 on page 87.  
Reset value is: XXXX XXXX XXXX XXXX  
CIRRUS LOGIC PRODUCT DATA SHEET  
46  
DS271PP3