Artesyn ATCA-7480 Installation and Use (February 2015) - Manual (Page 104)

Maps and Registers
ATCA-7480 Installation and Use (6806800T17A) 104
0x20 Super IO Device ID
0x21 Super IO Device Revision
0x28 Super IO LPC Control
0x29 Super IO SERIRQ and Pre-
divide Control
Table 5-9 Super IO Logical Device Number Register
Index Address: 0x07
Bit Description Default Access
7:0 Logical Device Number:
0x04: Logical Device 4 (UART 1Serial Port 1)
0x05: Logical Device 5 (UART2 Serial Port 2)
A write to this register selects the current logical device. This
allows access to the control and configuration registers for
each logical device. 0 LPC: r/w
Table 5-10 Super IO Device Identification Register
Index Address: 0x20
Bit Description Default Access
7:0 Device ID 0x0 LPC: r
Table 5-11 Super IO Device Revision Register
Index Address: 0x21
Bit Description Default Access
7:0 Device Revision 0x01 LPC: r
Table 5-8 Global Configuration Register Summary (continued)
Index Address Description