m24lr16e-r STMicroelectronics, m24lr16e-r Datasheet - Page 111

• 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
26.19
Fast Initiate
On receiving the Fast Initiate command, the M24LR16E-R sets the internal Initiate_flag and
sends back a response only if it is in the Ready state. The command has to be issued in the
Non Addressed mode only (Select_flag is reset to 0 and Address_flag is reset to 0). If an
error occurs, the M24LR16E-R does not generate any answer. The Initiate_flag is reset after
a power-off of the M24LR16E-R. The data rate of the response is multiplied by 2.
The subcarrier_flag should be set to 0, otherwise the M24LR16E-R answers with an error
code.
The request contains:
●
Table 93.
The response contains:
●
●
Table 94.
Figure 71. Fast Initiate frame exchange between VCD and M24LR16E-R
When configured in the RF busy mode, the RF WIP/BUSY pin is tied to 0 from the SOF that
starts the Fast Initiate command to the end of the M24LR16E-R response.
When configured in the RF write in progress mode, the RF WIP/BUSY pin remains in high-Z
state.
Response
Request
M24LR16E-R
SOF
SOF
No data
the flags,
the Unique ID.
VCD
Request_flags
Response
Fast Initiate request format
Fast Initiate response format
_flags
8 bits
8 bits
SOF
DSFID
8 bits
Fast Initiate
Initiate
request
Doc ID 018932 Rev 7
Fast
C2h
IC Mfg
Code
02h
EOF
64 bits
UID
<-t
1
-> SOF
CRC16
16 bits
Fast Initiate
response
CRC16
16 bits
Command codes
Response
Request
EOF
EOF
EOF
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