m24lr16e-r STMicroelectronics, m24lr16e-r Datasheet - Page 29

• Manufacturer Part Number: m24lr16e-r
• Description: 16 Kbit Eeprom With Password Protection, Dual Interface & Energy Harvesting 400 Khz I²c Bus & Iso 15693 Rf Protocol At 13.56 Mhz
• Manufacturer: STMicroelectronics

M24LR16E
4.3.3
Note:
●
Delivery of Energy harvesting analog output voltage on the Vout pin depends on the value of
the EH_enable bit of the volatile Control register (see
Table 15.
1. Bit 7 to Bit 1 are read-only bits.
●
At power-up, in I²C or RF mode, the EH_enable bit is updated according to the value of the
EH_mode bit stored in the non-volatile Configuration byte (see
EH_mode bit is used to configure whether the Energy harvesting mode is enabled or not by
default.
Table 16.
FIELD_ON indicator bit
The FIELD_ON bit indicator located as Bit 1 of the Control register is a read-only bit used to
indicate when the RF power level delivered to the M24LR16E-R is sufficient to execute RF
commands.
●
●
During read access to the Control register in RF mode, the FIELD_ON bit is always read
at 1.
E2=1
I
2
C byte address
Energy harvesting enable control
–
–
Energy harvesting default mode control
When FIELD_ON = 0, the M24LR16E-R is not able to execute any RF commands.
When FIELD_ON =1, the M24LR16E-R is able to execute any RF commands.
EH_mode value
When set to 1, the EH_enable bit enables the Energy harvesting mode, meaning
that the Vout analog output signal is delivered when the P
conditions corresponding to the chosen sink current configuration bit are met (see
Table
When set to 0, the EH_enable bit disable the Energy harvesting mode and the
analog output Vout remains in set in High-Z state.
2336
Control register
EH_enable bit value after power-up
0
1
126).
0
Bit 7
(1)
0
Bit 6
(1)
Doc ID 018932 Rev 7
EH_enable after power-up
0
Bit 5
(1)
0
Bit 4
(1)
1
0
0
Bit 3
(1)
Table
0
Bit 2
(1)
15).
Table
FIELD_ON
AC0-AC1_min
Energy harvesting
BIT 1
16). In other words, the
System memory area
after power-up
disabled
enabled
(1)
and I
EH_enable
BIT 0
sink_max
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