Echelon FT 3150 Smart Transceiver - Manual (Page 20)

Chapter 2 - Hardware Resources
14 FT 3120 / FT 3150 Smart Transceiver Data Book
— Unique 48-bit Neuron ID (written at the factory).
— User-written application code and read-mostly data. See Table 2.6 for available EEPROM space.
• 2,048 bytes of static RAM that store the following:
— Stack segment, application, and system data.
— Network and application buffers.
• The processor can access 59,392 bytes of the available 65,536 bytes of memory address space via the exter-
nal memory interface. The remaining 6,144 bytes of the memory address space are mapped internally.
• 16,384 bytes of the external memory (59,392 bytes total) are required to store the following:
— The Neuron firmware, including the system firmware executed by the MAC and Network processors, and
the executive supporting the application program.
• The rest of the external memory (43,008 bytes) is available for:
— User-written application code.
— Additional application read/write and non-volatile data.
— Additional network buffers and application buffers.
EEPROM
Both versions of the FT Smart Transceiver have internal EEPROM containing:
• Network configuration and addressing information.
Figure 2.5 FT 3150 Smart Transceiver
Memory Map Figure 2.6 FT 3120 Smart Transceiver
Memory Map
2.5K Reserved Space
42K of Memory
Space Available
to the User
E7FF
4000
External
Internal
16K Neuron
Firmware and
Reserved Space
3FFF
FFFF
F200
F1FF
0.5K EEPROM
F000
EFFF
2K RAM
E800
0000
1K Reserved Space For
Memory Mapped I/O
Unavailable
FBFF
12K Neuron Firmware
(ROM)
2FFF
FFFF
FC00
EFFF
3K EEPROM
F000
2K RAM
E800
0000
Internal
Unavailable
1K EEPROM
4C00
4FFF
1K Reserved Space For
Memory Mapped I/O
FBFF
FC00