Probe Control Unit; Figure 2-4 Processing Module-Block Diagram; Figure 2-5 Probe Control Unit Block Diagram - Siemens TS2000 Service Manual

TS2000 Service Manual

2.14 Probe Control Unit

Local I/O
SPB7-520.840.01.01.02
Figure 2-4 Processing Module -Block Diagram
The Probe Control Unit consists of:
•
CPU
• RAM configurable as 32 KB × 16 or 128 KB × 16
• Flash ROM of 128 KB × 8
•
Reset Circuit
•
14.7 MHz Crystal Oscillator
•
PC Serial Interface
•
Local I/O Interface
•
PC Parallel interface
RAM
MPU
14.7 mHz

Figure 2-5 Probe Control Unit Block Diagram

The CPU boots after reset from the flash memory and continues by
running some POST (Power On Self-Test) diagnostics. In addition to
the POST software, the flash ROM also contains communication and
flash programming software, as well as probe specific parameters.
FLASH
Optical
Coupling
RD7409290-0 Rev. F
RS-232
PC COM
Drivers
2-9