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L9805 Datasheet(PDF) 72 Page - STMicroelectronics

Part # L9805
Description  Super Smart Power Motor Driver with 8-BIT MCU, CAN Interface, 16K EPROM, 256Bytes RAM, 128 Bytes EEPROM, 10 Bit ADC, WDG, 2 Timers, 2 PWM Modules, Ful
PDF  103 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9805 Datasheet(HTML) 72 Page - STMicroelectronics

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L9805
CONTROLLER AREA NETWORK (Cont’d)
FILTER HIGH REGISTERS (FHRx)
Read/Write
Reset Value: Undefined
FIL[11:3] are the most significant 8 bits of a 12-bit
message filter. The acceptance filter is compared
bit by bit with the identifier and the RTR bit of the
incoming message. If there is a match for the set
of bits specified by the acceptance mask then the
message is stored in a receive buffer.
FILTER LOW REGISTERS (FLRx)
Read/Write
Reset Value: Undefined
FIL[3:0] are the least significant 4 bits of a 12-bit
message filter.
MASK HIGH REGISTERS (MHRx)
Read/Write
Reset Value: Undefined
MSK[11:3] are the most significant 8 bits of a 12-
bit message mask. The acceptance mask defines
which bits of the acceptance filter should match
the identifier and the RTR bit of the incoming mes-
sage.
MSKi = 0: don’t care.
MSKi = 1: match required.
MASK LOW REGISTERS (MLRx)
Read/Write
Reset Value: Undefined
MSK[3:0] are the least significant 4 bits of a 12-bit
message mask.
70
FIL11
FIL10
FIL9
FIL8
FIL7
FIL6
FIL5
FlL4
70
FIL3
FIL2
FIL1
FIL0
0000
70
MSK11
MSK10
MSK9
MSK8
MSK7
MSK6
MSK5
MSK4
70
MSK3
MSK2
MSK1
MSK0
0
0
0
0



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