
Maps and Registers
146
ATCA-7540 Installation and Use (6806871A01A
)
5.1.12.11 DIMM ADR Status Register
BIOS can read the status of PCH_ADR_IRQ_ signal from this register on boot up. This gives BIOS
the information that the DIMM has data stored from last boot. BIOS must clear this register
after boot up. Writing “1” to this register bit clears the register bit.
5.1.13 CPU Control Register
The following table contains the CPU Control Register information.
Table 5-63. DIMM ADR Status Register
Address Offset: 0x1A
Bit
Description
Default
Access
0
Indicates if the ADR feature is enabled. (GPIO37 of
Cavecreek)
0: ADR disabled (PCH_ADR_IRQ_ is driven high)
1: ADR enabled (PCH_ADR_IRQ_ is driven low)
PWR_GOOD:0
LPC: r/w1c
IPMC: r
7:1
Reserved 0
r
Table 5-64. CPU Control Register
Address Offset: 0x1E
Bit
Description
Default
Access
0
PCH_PSTATE_ pulse generation. Minimum low pulse
width is X
μ
s:
0: No action
1: Generate PSTATE low pulse
-
IPMC: w
1
PCH_RCIN_ pulse generation. Minimum low pulse
width is X
μ
s:
0: No action
1: Generate RCIN low pulse
-
IPMC: w
7:2
Reserved -
-
Summary of Contents for ATCA-7540
Page 1: ...ATCA 7540 Installation and Use P N 6806871A01A December 2018 ...
Page 12: ...12 ATCA 7540 Installation and Use 6806871A01A Contents ...
Page 28: ...About this Manual 28 ATCA 7540 Installation and Use 6806871A01A ...
Page 34: ...Safety Notes 34 ATCA 7540 Installation and Use 6806871A01A ...
Page 66: ...Hardware Preparation and Installation 66 ATCA 7540 Installation and Use 6806871A01A ...
Page 276: ...Supported IPMI Commands 276 ATCA 7540 Installation and Use 6806871A01A ...
Page 322: ...Related Documentation 322 ATCA 7540 Installation and Use 6806871A01A ...
Page 323: ......