AcroPack Series AP560
CAN Bus Interface Module
- 50 -
Interrupt Flag Register
The Interrupt Flag Register INTF bits will be set by HI-3111 when the
corresponding related events described below occur. If individual bits in the
Interrupt Enable Register INTE are set, the INT pin will be latched high when
any of the corresponding INTF bits are set. This alerts the host that one of the
conditions below has occurred. Reading this register will clear all bits and
reset the INT pin.
Table 25 INTF (Read only, 0xDE)
BIT
FUNCTION
0
F0MESS
–
Filter 0 passed a valid message.
This bit is set when receive filter zero passes a valid
message. FILHIT3:0 bits will also be set to <1000> in the
Message Status Register, MESSTAT
1
F1MESS
–
Filter 1 passed a valid message.
This bit is set when receive filter one passes a valid
message. FILHIT3:0 bits will also be set to <1001> in the
Message Status Register, MESSTAT
2
WAKEUP
–
Wake-Up detected
This bit is set when the HI-3111 wakes up from Sleep Mode
in response to bus activity.
3
MCHG
–
Mode Change bit
This bit is set when the mode of operation is changed. Any
pending transmissions in the transmit FIFO will be
completed (FIFO will be emptied) before the mode change
occurs.
4
BUSERR
–
Bus Error
This bit is set when a bus error occurs. Bits 4:0 in the ERR
register can be read to determine the source of the error.
5
TXCPLT
- Successful transmission complete.
This bit is set when a message is successfully transmitted
6
RXFIFO
- Message received in FIFO (filtered).
This bit is set when a valid message passes the filter criteria
and is passed from the temporary receive buffer to the
receive FIFO.
7
RXTMP
- Message received in temporary receive buffer
(unfiltered). This bit is set when a valid message is received
in the temporary receive buffer.
Содержание AcroPack AP560
Страница 28: ...AcroPack Series AP560 CAN Bus Interface Module 28 Figure 2 Standard Data Frame...
Страница 30: ...AcroPack Series AP560 CAN Bus Interface Module 30 Figure 3 Extended Data Frame...
Страница 32: ...AcroPack Series AP560 CAN Bus Interface Module 32 Figure 4 Remote Frame...
Страница 34: ...AcroPack Series AP560 CAN Bus Interface Module 34 Figure 5 Error Frame...