GR740-UM-DS, Nov 2017, Version 1.7 176 www.cobham.com/gaisler
GR740
Table 166. 0xA4 - RTR.AMBAINTRX - AMBA port Interrupt receive
31 0
RXIRQ
0x00000000
wc
31: 0 Received interrupt code (RXIRQ) - Each bit corresponds to the interrupt number with the same number as
the bit index. A position is set to 1 when an interrupt code is received for which the corresponding bit in the
RTR.AMBAINTMSK0 register is set to 1.
Table 167. 0xA8 - RTR.AMBAACKRX - AMBA port Interrupt acknowledgment / extended interrupt receive
31 0
RXACK
0x00000000
wc
31: 0 Received interrupt acknowledgment code / extended interrupt code (RXACK) - When operating in
extended interrupt mode (RTR.RTRCFG.EE = 1) then each bit corresponds to the interrupt number with the
same number as the bit index plus 32, i.e bit 0 corresponds to interrupt number 32, bit 1 to interrupt number
33 etc. This bit gets set to 1 when an extended interrupt code is received for which the corresponding bit in
the RTR.AMBAINTMSK1 register is set to 1.
When operating in interrupt with acknowledgment mode (RTR.RTRCFG.EE = 0) then each bit corresponds
to the interrupt number with the same number as the bit index. This bit gets set to 1 an interrupt acknowledg-
ment code is received for which the corresponding bit in the RTR.AMBAINTMSK0 register is set, and
either if RTR.AMBAINTCTRL.AA is set to 1 or for which the matching interrupt code was sent by soft-
ware.
Table 168. 0xAC - RTR.AMBAINTTO0 - AMBA port Interrupt timeout, interrupt 0-31
31 0
INTTO
0x00000000
wc
31: 0 Interrupt code timeout (INTTO) - Each bit corresponds to the interrupt number with the same number as the
bit index. This bit is set to 1 when an interrupt code that was sent by software doesn’t receive an interrupt
acknowledgment code for the duration of a timeout period (specified in the RTR.ISRTIMER register), and if
the corresponding bit in the RTR.AMBAINTMSK0 register is set.
Table 169. 0xAC - RTR.AMBAINTTO1 - AMBA port Interrupt timeout, interrupt 32-63
31 0
INTTO
0x00000000
wc
31: 0 Extended interrupt code timeout (INTTO) - Each bit corresponds to the interrupt number with the same
number as the bit index plus 32, i.e bit 0 corresponds to interrupt number 32, bit 1 to interrupt number 33
etc.. This bit is set to 1 when an extended interrupt code that was sent by software time out, i.e after the dura-
tion of a timeout period (specified in the RTR.ISRTIMER register), and if the corresponding bit in the
RTR.AMBAINTMSK1 register is set.
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