KP125 EVAL BOARD Infineon Technologies, KP125 EVAL BOARD Datasheet - Page 30

• Manufacturer Part Number: KP125 EVAL BOARD
• Description: BOARD EVALUATION KP125
• Manufacturer: Infineon Technologies
• Type: Pressure Sensorr

Specifications of KP125 EVAL BOARD

• Contents: Fully Assembled Evaluation Board
• For Use With/related Products: KP125
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: KP125EVALBOARDIN

Figure 31
Standby mode
Standby mode is the default mode of the EEPROM array. In test mode rows EE0 to EE6 can be accessed via SPI
commands.
Refresh mode
In refresh mode the content of the EEP_cells is copied into the corresponding EEP_registers. This also means
that in test mode written content in the EEP_registers is obsolete. Signal path - registers will only be updated when
test mode is left. If FEC is enabled the row and column parity of the EEPROM array is checked and the result is
stored in the status register.
Margin mode
Margin mode is used to check the amount of charge on the floating gates of the EEPROM cells (refer to
Margin Page” on Page
The margin mode gives a confirmation about the stored charge inside an E
to check the quality of the E²PROM programming. For the E²PROM cells with a programmed "1" the margin
voltage can be verified in detail. The cells with a programmed "0" can only be checked if the value is lower than
maximum margin level. However, being inside the defined range guarantees data consistency over lifetime.
Figure 32
Figure 32
In order to check if programmed "1" cells are within the specified range, the serial command for margin test has
to be sent to the E²PROM control register with the V
User’s Manual
shows the two ranges for a programmed "1" and "0".
EE0
EE1
EEPROM Modes
Margin Range
EE1
Example E
programmed „0"s
2.8 V
0.6 V 0.1 V -0.5 V
3
correctly
1
1
Margin Range „0"
0.2 V
2
PROM cell charges after programming
2
2
18).
1.5 V 3.5 V
EE0
2
3
3
EE1
V
5 V
MARGIN_max_0
2
EE1
4
4
EEP_MODE(2:0) description
000
001
010
011
100
101
110
111
1
bad programmed
Defined
E
content
1011…
0001…
2
PROM
cells
EE0
3
MARGIN_min_1
30
V
MARGIN_min_1
standby (default)
write
erase
refresh
margin
margin_z
reserved
reserved
voltage level (refer to
EE0
programmed „1"s
1
correctly
Margin Range „1"
Digital Interface for EEPROM access
2
PROM cell and therewith the possibility
Evalkit for Pressure Sensors
EE0
4
V
Figure
MARGIN_max_1
bad programmed cell
Rev. 1.1, 2007-11-23
9). Afterwards, the
EE1
4
KP12x Kit
“EEPROM