7Formats and Data Flow
194 Keysight 53210A User’s Guide
Data Flow
The flow of measurement data within the counter is summarized in Figure 7-1
Figure 7-1 Data Flow within the 53210A Counter.
Reading locations include the front panel, reading memory (volatile), output 
buffer, internal flash memory (non-volatile), and external USB memory. 
The commands which determine data flow are listed in Table 7-2 and are 
described in the following paragraphs.
output 
buffer
Keysight 53210A Counter
MMEMory:STORe:DATA
INITiate:IMMediate
READ?
(measurements)
FETCh?
R?
DATA:REMove?
DATA:LAST?
USB Memory Device
volatile reading memory
(1M readings) 
battery 
flash 
instrument  firmware 
calibration 
constants
state storage 
MMEMory:LOAD:STATe
MMEMory:STORe:STATe
counter flash (non-volatile) memory
internal  flash
(5M readings) 
MMEMory:UPLoad?
< instrument states >
MMEMory:DOWNoad:DATA