Rainbow-electronics ATmega64C1 Manuel d'utilisateur télécharger pdf (Page 224)

224

7647A–AVR–02/08

ATmega32/64/M1/C1

– 1 = Checksum error.

This bit is cleared when LERR bit in LINSIR is cleared.

• Bit 0 - LBERR: Bit Error Flag

–0 = no error,

– 1 = Bit error.

This bit is cleared when LERR bit in LINSIR is cleared.

17.6.5 LIN Bit Timing Register - LINBTR

• Bit 7 - LDISR: Disable Bit Timing Re synchronization

– 0 = Bit timing re-synchronization enabled (default),

– 1 = Bit timing re-synchronization disabled.

• Bits 5:0 - LBT[5:0]: LIN Bit Timing

Gives the number of samples of a bit.

sample-time = (1 /

fclk

i/o

) x (LDIV[11..0] + 1)

Default value: LBT[6:0]=32 — Min. value: LBT[6:0]=8 — Max. value: LBT[6:0]=63

17.6.6 LIN Baud Rate Register - LINBRR

• Bits 15:12 - Reserved Bits

These bits are reserved for future use. For compatibility with future devices, they must be

written to zero when LINBRR is written.

• Bits 11:0 - LDIV[11:0]: Scaling of clk

i/o

Frequency

The LDIV value is used to scale the entering clk

i/o

frequency to achieve appropriate LIN or

UART baud rate.

17.6.7 LIN Data Length Register - LINDLR

• Bits 7:4 - LTXDL[3:0]: LIN Transmit Data Length

Bit 7654321 0

LDISR - LBT5 LBT4 LBT3 LBT2 LBT1 LBT0

LINBTR

Read/Write R/W R R/(W) R/(W) R/(W) R/(W) R/(W) R/(W)

Initial Value0010000 0

Bit 76543210

LDIV7 LDIV6 LDIV5 LDIV4 LDIV3 LDIV2 LDIV1 LDIV0 LINBRRL

----LDIV11LDIV10LDIV9LDIV8LINBRRH

Bit 151413121110 9 8

Read/Write R/W R/W R/W R/W R/W R/W R/W R/W

Initial Value00000000

Bit 76543210

LTXDL3 LTXDL2 LTXDL1 LTXDL0 LRXDL3 LRXDL2 LRXDL1 LRXDL0

LINDLR

Read/Write R/W R/W R/W R/W R/W R/W R/W R/W

Initial Value00000000

1 2 ... 219 220 221 222 223 224 225 226 227 228 229 ... 365 366

Commentaires sur ces manuels

Pas de commentaire

Rainbow-electronics ATmega64C1 Manuel d'utilisateur Page 224

Commentaires sur ces manuels

Produits connexes et manuels pour Capteurs Rainbow-electronics ATmega64C1