DP83816
3.0 Functional Description
DP83816 consists of a MAC/BIU (Media Access
Controller/Bus Interface Unit), a physical layer interface,
SRAM, and miscellaneous support logic. The MAC/BIU
includes the PCI bus, BIOS ROM and EEPROM interfaces,
and an 802.3 MAC. The physical layer interface used is a
single-port version of the 3.3V DsPhyterII. Internal memory
consists of one - 0.5 KB and two - 2 KB SRAM blocks.
TPRDP/M
3V DSP Physical Layer
TPTDP/M
MII Mgt
Test data out
MII RX
MII TX
25 MHz Clk
SRAM
RX-2 KB
SRAM
RXFilter
.5 KB
SRAM
TX-2 KB
Tx rd data
Rx rd data
RAM
BIST
Logic
Test data in
Interface
Logic
MII RX
MII TX
MII Mgt
BIOS ROM Cntl
BIOS ROM Data
EEPROM/LEDs
Rx wr data
Tx wr data
Rx Addr
PCI CLK
PCI CNTL
PCI AD
Tx Addr
MAC/BIU
DP83816
Figure 3-1 DP83816 Functional Block Diagram
11
BROM/EE
MII Mgt
MII RX
MII TX
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