SENA HD1200 User Manual
Page 10
Starter Kit and User Manual for the HelloDevice 1200
7
lines (BA0 ~ BA10) of JP1 and JP2.
!" Cypress CY7C136 2 Kbytes Dual-Port RAM (See Appendix A)
!" 52-pin PQFP
3.6 Flash Memory
Web page resources files that the user creates to control the user device are stored in the flash memory of
HelloDevice Main Board.
!" 4 MBits (512 Kbytes)
!" Composed of 2,048 sectors of 256 Bytes.
3.7 Firmware
The HelloDevice Firmware resides in the program memory of microprocessor. The firmware includes a TCP/IP
stack conforming to the Open System Interconnection (OSI) requirements for an Internet connection, and the
dual-port RAM interface for connection to the user devices.
Layer
The HelloDevice Supports:
7 Application
HTTP
Dual-Port RAM
Communication
System
Configuration
BOOTP
6 Presentation
5 Session
4 Transport
3 Network
TCP
UDP
2
Data link
IP / ICMP
ARP
1
Physical layer
Ethernet (IEEE802.3)
Table 3.2. OSI 7 Layers and the HelloDevice 1200 Firmware