ST72F521 datasheet(137/215 Pages) STMICROELECTRONICS

137 / 215 page

ST72F521, ST72521B

137/215

CONTROLLER AREA NETWORK (Cont’d)

INTERRUPT CONTROL REGISTER (ICR)

Read/Write

Reset Value: 00h

Bit 7 = Reserved.

Bit 6 = ESCI Extended Status Change Interrupt

− Read/Set/Clear

Set by software to specify that SCIF is to be set on

receive errors also.

Cleared by software to set SCIF only on status

changes and wake-up but not on all receive errors.

Bit 5 = RXIE Receive Interrupt Enable

− Read/Set/Clear

Set by software to enable an interrupt request

whenever a message has been received free of er-

rors.

Cleared by software to disable receive interrupt re-

quests.

Bit 4 = TXIE Transmit Interrupt Enable

− Read/Set/Clear

Set by software to enable an interrupt request

whenever a message has been successfully trans-

mitted.

Cleared by software to disable transmit interrupt

requests.

Bit 3 = SCIE Status Change Interrupt Enable

− Read/Set/Clear

Set by software to enable an interrupt request

whenever the node’s status changes in run mode or

whenever a dominant pulse is received in standby

mode.

Cleared by software to disable status change inter-

rupt requests.

Bit 2 = ORIE Overrun Interrupt Enable

− Read/Set/Clear

Set by software to enable an interrupt request

whenever a message should be stored and no re-

ceive buffer is avalaible.

Cleared by software to disable overrun interrupt re-

quests.

Bit 1 = TEIE Transmit Error Interrupt Enable

− Read/Set/Clear

Set by software to enable an interrupt whenever an

error has been detected during transmission of a

message.

Cleared by software to disable transmit error inter-

rupts.

Bit 0 = Reserved.

ESCI

RXIE

TXIE

SCIE

ORIE

TEIE

ST72F521 Scheda tecnica(PDF) 137 Page - STMicroelectronics

ST72F521 Scheda tecnica(HTML) 137 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Scheda tecnica Scarica

Link URL