DM9621
USB2.0快速以太网控制器
内容
1.产品特点: ............................................................................................................................. 6
1.1系统Description..................................................................................................... 7
2.框图和块说明........................................... ....................................... 8
3.引脚配置: ................................................................................................................ 9
3.1 48-引脚QFN................................................................................................................ 9
3.2 48引脚说明..................................................................................................... 10
3.3带针表......................................................................................................... 12
4.供应商控制和状态寄存器集.......................................... .................................. 13
4.1网络控制寄存器( 00H ) ........................................... ..................................... 14
4.2网络状态寄存器( 01H ) ........................................... ...................................... 15
4.3 TX控制寄存器( 02H ) ........................................... ............................................. 16
4.4 RX控制寄存器( 05H ) ........................................... ........................................... 16
4.5 RX状态寄存器( 06H ) ........................................... ............................................ 17
4.6接收溢出计数器寄存器( 07H ) .......................................... .................... 17
4.7反压门限寄存器( 08H ) .......................................... ....................... 18
4.8流量控制门限寄存器( 09H ) .......................................... ........................ 18
4.9 RX / TX流量控制寄存器( 0AH ) ........................................ ............................... 19
4.10 EEPROM & PHY控制寄存器( 0BH ) ......................................... .................... 19
4.11 EEPROM & PHY地址寄存器( 0CH ) ......................................... .................. 20
4.12 EEPROM & PHY数据寄存器( EE_PHY_L : 0DH EE_PHY_H : 0EH ) .... 20
4.13唤醒控制寄存器( 0FH ) .......................................... ................................ 20
4.14物理地址寄存器( 10H 〜 15H ) ......................................... ........................ 20
4.15多播地址寄存器( 16H 〜 1DH ) ......................................... ....................... 21
4.16通用控制寄存器( 1EH ) .......................................... .................. 21
4.17通用寄存器( 1FH ) ........................................... ............................... 21
4.18供应商ID寄存器( 28H 〜 29H ) ......................................... ...................................... 21
4.19产品ID寄存器( 2AH 〜 2BH ) ......................................... .................................... 21
4.20芯片版本寄存器( 2CH ) ........................................... ...................................... 21
4.21 TX特殊控制寄存器( 2DH ) .......................................... ............................... 22
4.22外部PHY力模式控制寄存器( 2EH ) ........................................ ......... 22
4.23发送校验和控制寄存器( 31H ) ......................................... ................ 22
4.24接收校验和控制状态寄存器( 32H ) ........................................ ....... 23
4.25外部PHYceiver地址寄存器( 33H ) .......................................... ................ 23
初步
版本: DM9621 -14 - DS- P02
2011年2月23日
2