KSZ8841-16MBLI Micrel Inc, KSZ8841-16MBLI Datasheet - Page 43
KSZ8841-16MBLI
Manufacturer Part Number
KSZ8841-16MBLI
Description
IC MAC CTRLR 8/16BIT 128LQFP
Manufacturer
Micrel Inc
Datasheet
1.KSZ8841-16MBL.pdf
(105 pages)
Specifications of KSZ8841-16MBLI
Controller Type
Ethernet Controller, MAC
Interface
Bus
Voltage - Supply
3.1 V ~ 3.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
*
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Supply
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Micrel, Inc.
KSZ8841-16/32 MQL/MVL/MBL
CPU Interface I/O Registers
The KSZ8841M provides an EISA-like, ISA-like, or VLBUS-like bus interface for the CPU to access its internal I/O
registers. I/O registers serve as the address that the microprocessor uses when communicating with the device. This is
used for configuring operational settings, reading or writing control, status information, and transferring packets by reading
and writing through the packet data registers.
I/O Registers
Input/Output (I/O) registers are limited to 16 locations as required by most ISA bus-based systems; therefore, registers
are assigned to different banks. The last word of the I/O register locations (0xE - 0xF) is shared by all banks and can be
used to change the bank in use.
The following I/O Space Mapping Tables apply to 8, 16 or 32-bit bus products. Depending upon the bus interface used
and byte enable signals (BE[3:0]N control byte access), each I/O access can be performed as an 8-bit, 16-bit, or 32-bit
operation. (The KSZ8841M is not limited to 8/16-bit performance and 32-bit read/write are also supported).
October 2007
43
M9999-102207-1.6
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