CS5535-UDCF AMD (ADVANCED MICRO DEVICES), CS5535-UDCF Datasheet - Page 500

• Manufacturer Part Number: CS5535-UDCF
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of CS5535-UDCF

• Operating Temperature (min): 0C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

6.18.2.4 PM Control 2 (PM2_CNT)
ACPI I/O Offset
Type
Reset Value
PM2_CNT is the Control register for enabling/disabling the system arbiter. This register is not implemented. Writes “don’t
care. Reads return 0. This register may be accessed with 8-bit or 16-bit I/O.
6.18.2.5 PM Timer (PM_TMR)
ACPI I/O Offset
Type
Reset Value
PM_TMR is the data value register for the 32-bit timer running from the 3.579 MHz clock.
500
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
15
15:8
31:0
Bit
7:1
Bit
0
14
Name
RSVD
RSVD
ARB_DIS
Name
TMR_VAL (RO)
13
0Ch
R/W
0000h
10h
RO
00000000h
31506B
12
RSVD
11
Description
Reserved. ACPI defines this as an 8-bit register. It has been extended so that all PML
registers are at least 16 bits. Writes to these bits are a “don’t care”. Reads always
return 0.
Reserved. By convention write 0, but other values are “don’t care”. Reads return 0
value.
System Arbiter Disable. Disables when high. Reads return value written.
This bit is required by the ACPI specification, but internally is not connected to any PM
logic.
Description
Timer Value (Read Only). This read only counter is driven by the 3.579545 MHz clock.
Writes are always a “don’t care”.
The counter runs continuously as long as the system is in the Working state; otherwise,
counting is stopped. It stops counting when SUSP# is asserted and starts counting
when SUSPA# has been de-asserted after having been asserted. The value in this reg-
ister is lost in the Standby state.
10
PM2_CNT Bit Descriptions
PM_TMR Bit Descriptions
PM2_CNT Register Map
PM_TMR Register Map
9
TMR_VAL
8
7
AMD Geode™ CS5535 Companion Device Data Book
Power Management Controller Register Descriptions
6
5
RSVD
9
4
8
7
3
6
5
2
4
3
1
2
ARB_
1
DIS
0
0