RC82562EP Intel, RC82562EP Datasheet - Page 41
RC82562EP
Manufacturer Part Number
RC82562EP
Description
IC ETH 10/100 PLC DEV CTRL 64BGA
Manufacturer
Intel
Specifications of RC82562EP
Rohs Status
RoHS non-compliant
Controller Type
Ethernet Controller
Interface
IEEE 802.3
Voltage - Supply
3.135 V ~ 3.465 V
Mounting Type
Surface Mount
Package / Case
64-BGA
Current - Supply
-
Operating Temperature
-
Other names
832361
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
- Current page: 41 of 173
- Download datasheet (2Mb)
6.3.2
Intel 8255x 10/100 Mbps Ethernet Controller Family Open Source Software Developer Manual
Note: All fields in the CSR are byte, word, or Dword addressable. Accesses to the CSR, especially the
preferred method of accessing the CSR. Some bridges may not properly transfer data in memory
mapped mode and it may be necessary to have an I/O backup method if the memory method does
not work.
SCB command and status word, should be limited to byte-wide operations to avoid and side
effects. For example, issuing a new command through the CU, only the lower byte of the CSR
command word should be accessed (byte 2 of the CSR). This will prevent any accidental
modification of the interrupt mask or software interrupt bits that occupy the upper byte of the
command word.
System Control Block (SCB)
The SCB plays a major role in communications between the CPU and the LAN controller.
Commands issued by the software and status reported by the device are placed in the SCB. The
SCB is part of the CSR and represents the first two Dwords of that structure.
Control commands are issued to the device by writing them into the SCB. This causes the device to
examine the command, clear the lower byte of the SCB command word (indicating command
acceptance), and perform the required action. Control commands perform the following types of
tasks:
•
•
•
•
•
Operate the Command Unit (CU). The SCB controls the CU by specifying the address of the
Command Block List (CBL) and by starting or resuming execution of CBL commands.
Operate the Receive Unit (RU). The SCB controls RU frame reception by specifying the
address of the Receive Frame Area (RFA) and by starting, resuming, or aborting frame
reception.
Load the dump counters address.
Command the device to dump or dump and reset its internal statistical counters.
In a similar manner, the CPU can send Interrupt Acknowledgments to the device by writing
them into the Interrupt Acknowledge byte (upper byte of the SCB Status word).
The device also indicates status to the CPU through bits in the SCB Status word such as CU
status and RU status.
Indicate the cause of the current interrupt(s). Interrupts are caused by one or more of the
following events:
— The CU will interrupt the CPU when it completes an action command that has its interrupt
— The CU will interrupt the CPU either when it leaves the active state (CNA Interrupt) or
— The CU will interrupt the CPU when it completes a transmit command with a bad status
— The RU will interrupt the CPU when it receives either a complete frame or a predefined
— The RU is not ready (RNR Interrupt).
— A previously initiated read or write cycle to the MDI has been completed (MDI Interrupt).
— Software has requested an interrupt (SWI Interrupt).
bit set (CX Interrupt).
when it enters the idle state (CI Interrupt), depending on how the device is configured.
(TNO Interrupt) if it is configured.
part of it (FR Interrupt or ER Interrupt for the 82558 and 82559 devices).
Host Software Interface
33
Related parts for RC82562EP
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Microprocessor: Intel Celeron M Processor 320 and Ultra Low Voltage Intel Celeron M Processor at 600MHz
Manufacturer:
Intel Corporation
Part Number:
Description:
Intel 82550 Fast Ethernet Multifunction PCI/CardBus Controller
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
Intel StrataFlash memory 32 Mbit. Access speed 120 ns
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
Intel StrataFlash memory 32 Mbit. Access speed 120 ns
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
Intel StrataFlash memory 64 Mbit. Access speed 150 ns
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
Intel StrataFlash memory 32 Mbit. Access speed 100 ns
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
DA28F640J5A-1505 Volt Intel StrataFlash Memory
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
5 Volt Intel StrataFlash?? Memory
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
5 Volt Intel StrataFlash?? Memory
Manufacturer:
Intel Corporation
Part Number:
Description:
Intel 6300ESB I/O Controller Hub
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
Intel 82801DB I/O Controller Hub (ICH4), Pb-Free SLI
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
Intel 82801FB I/O Controller Hub (ICH6)
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
Intel Strataflash Memory28F128J3 28F640J3 28F320J3
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
Controllers, Intel 430TX PCIset: 82439TX System Controller (MTXC)
Manufacturer:
Intel Corporation