SENA HD132x Series - Manual (Page 10)

HD132x Series User Manual
10
3.2 HD1321
The HD1321 hardware structure is shown in Figure 3.5 and the system block diagram is as shown in
Figure 3.6.
UART
10BaseT Ethernet Chip
Power Connection
( 5V DC )
32 KB
SRAM
microprocessor
TTL RS232 interface
Rear side
External interface
Ethernet interface
Figure 3.5 HD1321 Hardware Structure and Names
Ethernet
Ethernet controller
(10 Base-T)
Sx52BD
microprocessor
32 KB
SRAM
Power
supply
RS232
Interface
Figure 3.6 HD1321 System Block Diagram