 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
DP83266 Datasheet(PDF) 131 Page - National Semiconductor (TI) |
|
|
|
|||||||||||||||||||||||||||||
DP83266 Datasheet(HTML) 131 Page - National Semiconductor (TI) |
|
|
131 / 152 page  80 Signal Descriptions The DP83266 MACSI device is packaged in a 160-pin Plastic Quad Flat Pack The signals are divided into the following interfaces Control Interface Used for microprocessor access to the Ring Engine and Service Engine PHY Interface Interface signals to the DP8325155 PLAYER or DP8325657 PLAYERa External Matching Interface Interface signals used for external address matching LED Interface Used to control status LEDs ABus Interface Multiplexed AddressData System Interface Electrical Interface Signals associated with power supply and clocking 81 CONTROL INTERFACE The Control Interface operates asynchronously to the operation of the data services During an access the external Control Bus is synchronized with the internal Control Bus The ACK and INT signals are open drain signals to allow a wired-OR connection of several such signals Symbol Pin IO Description CBP 155 IO Control Bus Parity Odd parity on CBD7 – 0 CBD7 – 0 154 – 147 IO Control Bus Data Bidirectional Data bus CBA8 – 0 144 – 136 I Control Bus Address Address of a particular MACSI device register CE 130 I Control Bus Enable Handshake signal used to begin a Control Interface access Active low signal RW 129 I ReadWrite Determines current direction of a Control Interface access ACK 133 OD Acknowledge Acknowledges that the Control Interface access has been performed Active low open drain signal INT1 – 0 131 132 OD Interrupt Indicates presence of one or more enabled conditions in the Event Registers One Interrupt signal is provided as an indication to management services and one is provided as an indication to data services These can be tied together externally to create a single interrupt signal if desired Active low open drain signal 131 |
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
New Zealand ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
