28 scratch registers, Table 6-72, Ipmc bios communication register 1 – Artesyn ATCA-7470 Installation and Use (October 2014) User Manual
Page 195: Table 6-73, Ipmc bios communication register 2, Table 6-74, Ipmc bios communication register 3, Table 6-75, Lpc scratch register, Maps and registers

Maps and Registers
ATCA-7470 Installation and Use (6806800P15K)
195
6.4.28 Scratch Registers
Table 6-72 IPMC BIOS Communication Register 1
Address Offset: 0x7A
Bit
Description
Default
Access
7:0
IPMC BIOS
Communication bits
PWR_GOOD:0
LPC: r/w
IPMC: r/w
Table 6-73 IPMC BIOS Communication Register 2
Address Offset: 0x7B
Bit
Description
Default
Access
7:0
IPMC BIOS
Communication bits
PWR_GOOD:0
LPC: r/w
IPMC: r/w
Table 6-74 IPMC BIOS Communication Register 3
Address Offset: 0x7C
Bit
Description
Default
Access
7:0
IPMC BIOS
Communication bits
PWR_GOOD:0
LPC: r/w
IPMC: r/w
Table 6-75 LPC Scratch Register
Address Offset: 0x7D
Bit
Description
Default
Access
7:0
LPC Scratch bits
PWR_GOOD:0
LPC: r/w
IPMC: r