Artesyn ATCA-7470 Installation and Use (October 2014) - Manual (Page 166)

Maps and Registers
ATCA-7470 Installation and Use (6806800P15K) 166
6.4.11.1 RTM Interrupt Status Register
The RTM Interrupt Status Register is located in the RTM SPI address space. The host can access
the RTM register using the RTM SPI Master Interface.
No RTM interrupt sources are defined yet.
6.4.11.2 External Interrupt Status Register
Table 6-30 External Interrupt Status Register
Address Offset: 0x20
Bit Signal 1
1. When an interrupt is active, the corresponding status bit is read 1.
Description Default Access
0 IPMC2HOST_INT_ IPMC signals interrupt Ext. LPC: r
1 LM75_INT_ Interrupt input from payload Temp sensor Ext. LPC: r
2 ETH_BASE_INT_ IRQ request from 88E6161 Marvell Switch Ext. LPC: r
3 ETH_FP_INT_ IRQ request from 88E1322 Marvell PHY Ext. LPC: r
4 Reserved Reserved 0 r
5 THERM_ALERT_ IRQ request from IOH Thermo-sensor Ext. LPC: r
6 APB_ALARM An 48V input alarm (low voltage, etc) Ext. LPC: r
7 RTM_SPI_MISO RTM interrupt sources
0: RTM_SPI_MISO is high. No RTM interrupt.
1: RTM_SPI_MISO is low. One or more RTM
interrupt sources are active. When RTM SPI
Master face is active the current level is
latched Ext. LPC: r