I/O Address Areas; Overview Of The Internal Module Registers; Watchdog Trigger Register (Read Only, Address 066H) - Siemens SIMATIC IPC477D Operating Instructions Manual

Interrupt
IRQ15
IRQ16
IRQ17
IRQ18
IRQ19
IRQ20
IRQ21
IRQ22
IRQ23
8.5.4

I/O Address Areas

8.5.4.1

Overview of the internal module registers

The following addresses are used for the internal registers:
Addresses
I/O 062h
I/O 066h
I/O 50Ch
8.5.4.2

Watchdog trigger register (read only, address 066h)

Watchdog trigger register
The watchdog is triggered by a read action (address 066h) by this register. The result of the
read access can be disregarded (i.e., dummy read).
SIMATIC IPC477D, IPC477D PRO
Operating Instructions, 07/2015, A5E31347228-AD
Free
Graphics; PCI Express Root Port 3, 4, 8;
PCI Express Root Port 2, 3 (CPU-PEG slots) con-
nected to PCIe Riser slots
PCIe-x4 slot on Riser (1x4)
LAN2 (82574L Gigabit Network connection); PCIe-
x1 slot on Riser (1x1)
DP12/MPI or PROFINET (optional), MRAM
USB EHCI controller #1; USB EHCI controller #2;
USB XHCI controller
LAN1 (82579LM, Gigabit Network connection)
SATA controller #1; SATA controller #2
Intel Management Engine Interface; High Definition
Audio Interface
Input/output unit
Watchdog enable register / 066h select register (Page 168)
Watchdog trigger register (Watchdog enable register bit 2=0), Watchdog trig-
ger register (Watchdog enable register bit 2=1) (Page 167)
Battery status register (read-only) (Page 169)
Technical information
8.5 Hardware descriptions
Interrupt type
PCI shared
PCI exclusive
PCI shared
PCI exclusive
PCI shared
PCI exclusive
PCI shared
PCI shared
167