PEF22827EL-V11 Lantiq, PEF22827EL-V11 Datasheet - Page 84

• Manufacturer Part Number: PEF22827EL-V11
• Manufacturer: Lantiq

Specifications of PEF22827EL-V11

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Figure 13
7.3.1.1
The EEPROM header holds the following information about the content of the EEPROM:
•
•
Preliminary Data Sheet
EEPROM Signature (0000
from the EEPROM. When this field is not equal to 55
from the EEPROM and configuration parameters are not updated from it.
Active FW Bank Number (0001
download firmware. In a 64-Kbyte EEPROM, this field may have a value of 1
In a 32-Kbyte EEPROM this field may have a value of 1
000C
000A
0006
0008
1) Active FW Bank Number defines which FW
2) Addresses 0006
Notes:
H
bank and parameter zone is active and loaded
after hard reset, if the EEPROM jumper is ON.
For example: If 0006
FW Bank 1 starts at address 0080
You may change the default start address
for each bank (shown in parentheses).
H
H
H
:000B
:000D
:0007
:0009
0000
0001
0002
0003
0004
0005
The EEPROM Header
H
H
H
H
H
H
H
H
H
H
EEPROM Signature (55
Active FW Bank Number
FW Bank 1 Signature (11
FW Bank 2 Signature (22
Reserved (FF
Reserved (FF
Pointer
Pointer
Reserved (FFFF
Reserved (FFFF
EEPROM Data Structure
H
2
2
:0007
to FW Bank 1 (0080
to FW Bank 2 (8080
H
H
= 00
H
H
point to firmware.
)
)
H
H
H
)
)
and 0007
H
H
H
)
.
1
H
H
) - This field must be equal to 55
)
)
H
H
H
= 80
)
)
H
H
) - This field specifies the bank from which to
Header
84
7E00
DE84
FE00
5E84
7800
8000
F800
0000
H
H
H
H
H
H
H
H
:7DFF
:7FFF
:FDFF
:FFFF
:77FF
:807F
:F7FF
:007F
8080
8081
8082
8083
8084
DE83
5E83
0080
0081
0082
0083
0084
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
, firmware is not downloaded
Spare for User
Spare for User
CHK_SUM_H
CHK_SUM_L
CHK_SUM_H
CHK_SUM_L
LENGTH_H
LENGTH_H
LENGTH_L
Parameters
LENGTH_L
Parameters
H
FW Bank 1
FW Bank 1
FW Bank 2
FW Bank 2
Reserved
Reserved
Operation – Digital Block
Header
only.
Spare
H
to enable download
Rev. 1.1, 2005-01-30
128 bytes
(6,524 bytes)
(1,536 bytes)
(512 bytes)
(6,524 bytes)
(1,536 bytes)
(512 bytes)
EEPROM_Mapping
VDSL6100i
PEF 22827
H
or 2
H
.