SAB-C509-LM SIEMENS [Siemens Semiconductor Group], SAB-C509-LM Datasheet - Page 23

• Manufacturer Part Number: SAB-C509-LM
• Description: 8-Bit CMOS Microcontroller
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

C509-L
Figure 10
The Three Phases of the Bootstrap Loader
The serial communication, which is activated in phase II is performed with the integrated serial
interface 0 of the C509-L. Using a full- or half-duplex serial cable (RS232) the MCU must be
connected to the serial port of the host computer as shown in figure .
Figure 11
Bootstrap Loader Interface to the PC
Semiconductor Group
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