Z-World RabbitLink EG2100, Руководство пользователя

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26 RabbitLink (EG2100)
C.3 Memory
C.3.1 SRAM
The RabbitLink is designed to accept 128K or 512K of SRAM packaged in an SOIC case.
The standard models sold by Z-World and by Rabbit Semiconductor come with 128K of SRAM.
Figure D-3 shows the locations and the jumper settings for the jumpers at JP4 used to set the
SRAM size. The “jumpers” are 0
Ω
surface-mounted resistors.
Figure D-3. RabbitLink Jumper Settings
for SRAM and Flash EPROM Size
3.3.2 Flash EPROM
The RabbitLink is also designed to accept 128K to 512K of flash memory packaged in a TSOP
case.
The RabbitLink comes with two 256K flash memories, one for the firmware and one for data.
Figure D-3 shows the locations and the jumper settings for the jumpers at JP2 and JP3 used to set
the flash memory size. The “jumpers” are 0
Ω
surface-mounted resistors.
Z-World recommends that any customer applications should not be constrained by the
sector size of the flash EPROM since it may be necessary to change the sector size in
the future.
3.3.3 Dynamic C Premier BIOS Source Files
The Dynamic C Premier BIOS source files handle different standard RAM and flash memory sizes
automatically.
C71
C70
Q14
Q10
R61
R65
R69
R70
R71
R74
Q12
R73 Q13
TP6
TP7
C67
U11
C66
128K 512K
3
2
1
JP4
FD
JP4
SRAM
3
2
1
32K
3
2
1
JP4
128K/256K 512K
3
2 1
JP3
Flash Memory
3 2 1
FD
JP3
JP2
JP2
128K/256K 512K
3 2 1
Flash Memory
3 2 1
FD
FD
Factory
Default
TP1
TP3
TP2
C60
TP4
TP5
C61
C62
C63
C64
C65
U10
JP2
JP3
U12
U13
C68
U16
U15
JP4
D13 U14
R77
C72
Q15
R75
R76
C73
Q11
R72
R67
R66
R68
C69
R63
R64
R60
D10
D11 D12
TP8
R62
Flash
EPROM
Flash
EPROM
SRAM