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DP83816 Datasheet(PDF) 63 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part # DP83816
Description  10/100 Mb/s Integrated PCI Ethernet Media Access Controller and Physical Layer (MacPHYTER-II )
PDF  106 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

DP83816 Datasheet(HTML) 63 Page - National Semiconductor (TI)

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4.0 Register Set (Continued)
4.2.20 Boot ROM Address Register
The BRAR is used to setup the address for an access to an external ROM/FLASH device.
4.2.21 Boot ROM Data Register
The BRDR is used to read and write ROM/FLASH data from the data from/to an external ROM/FLASH device.
4.2.22 Silicon Revision Register
Tag: BRAR
Size: 32 bits
Hard Reset: FFFFFFFFh
Offset: 0050h
Access: Read Write
Soft Reset: unchanged
Bit
Bit Name
Description
31
AUTOINC
Auto-Increment
When set, the contents of ADDR will auto increment with every 32-bit access to the BRDR register.
30-16
unused
15-0
ADDR
Boot ROM Address
16-bit address used to access the external Boot ROM.
Tag: BRDR
Size: 32 bits
Hard Reset: undefined
Offset: 0054h
Access: Read Write
Soft Reset: undefined
Bit
Bit Name
Description
31-0
DATA
Boot ROM Data
Access port to external Boot ROM. Software can use BRAR and BRDR to read (and write if FLASH
memory is used) the external Boot ROM. All accesses must be 32-bits wide and aligned on 32-bit
boundaries.
Tag: SRR
Size: 32 bits
Hard Reset: as defined
Offset: 0058h
Access: Read Only
Soft Reset: unchanged
Bit
Bit Name
Description
31-16
unused
(reads return 0)
15-0
Rev
Revision Level
SRR register value for the DP83816 silicon.
DP83816AVNG
00000505h



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