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ST72561 Datasheet(PDF) 202 Page - STMicroelectronics

Part # ST72561
Description  8-BIT MCU WITH FLASH OR ROM, 10-BIT ADC, 5 TIMERS, SPI, LINSCI , ACTIVE CAN
PDF  262 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72561 Datasheet(HTML) 202 Page - STMicroelectronics

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ST72561
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beCAN CONTROLLER (Cont’d)
MAILBOX FILTER MATCH INDEX (MFMI)
This register is read only.
Reset Value: 0000 0000 (00h)
Bit 7:0 = FMI[7:0] Filter Match Index
This register contains the index of the filter the
message stored in the mailbox passed through.
For more details on identifier filtering please refer
to Section 10.9.4.3 - Filter Match Index para-
graph.
Note: This register is implemented only in receive
mailboxes. In transmit mailboxes, the MCSR reg-
ister is mapped at this location.
MAILBOX IDENTIFIER REGISTERS
(MIDR[3:0])
Read / Write
Reset Value: Undefined
MIDR0
Bit 7 = Reserved. Forced to 0 by hardware.
Bit 6 = IDE Extended Identifier
This bit defines the identifier type of message in
the mailbox.
0: Standard identifier.
1: Extended identifier.
Bit 5 = RTR Remote Transmission Request
0: Data frame
1: Remote frame
Bit 4:0 = STID[10:6] Standard Identifier
5 most significant bits of the standard part of the
identifier.
MIDR1
Bit 7:2 = STID[5:0] Standard Identifier
6 least significant bits of the standard part of the
identifier.
Bit 1:0 = EXID[17:16] Extended Identifier
2 most significant bits of the extended part of the
identifier.
MIDR2
Bit 7:0 = EXID[15:8] Extended Identifier
Bit 15 to 8 of the extended part of the identifier.
MIDR3
Bit 7:1 = EXID[6:0] Extended Identifier
6 least significant bits of the extended part of the
identifier.
70
FMI7
FMI6
FMI5
FMI4
FMI3
FMI2
FMI1
FMI0
70
0
IDE
RTR
STID10
STID9
STID8
STID7
STID6
70
STID5
STID4
STID3
STID2
STID1
STID0
EXID17
EXID16
70
EXID15
EXID14
EXID13 EXID12
EXID11
EXID10
EXID9
EXID8
70
EXID7
EXID6
EXID5
EXID4
EXID3
EXID2
EXID1
EXID0



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