Intel E3815 FH8065301567411 データシート
製品コード
FH8065301567411
Intel
®
Atom™ Processor E3800 Product Family
Datasheet
365
13.6.17
PWRGT_STATUS—Offset 61h
Power Gate Status;This register indicates the status of the voltage islands for the
various blocks that the P unit controls. This register is updated by the firmware after
servicing request from driver to power up / power down of the various islands. Each
island is controlled by a 2-bit field. 00 -- no clock or power gating, 01 -- clock gating,
10 -- reset and 11 -- power gating.(Encoding is as follows: subsys 0 RENder, 1 media,
3 -Display, DPIO :subsystem 5 Common lane, subs 6-9 TX, subs 10-11 RX)
Access Method
Default: 00000000h
9:8
0h
RW
POWERGATE_RESERVED1:
Reserved
7:6
0h
RW
POWERGATE_DISPLAY_CTL:
Active power gate control for display, DPIO0x03
indicates powered off state, 0x00 indicates powered on state. Driver will write this field
to register field to request power up or power down for the Display Controller
5:0
0h
RW
POWERGATE_RESERVED0:
Reserved
Bit
Range
Default &
Access
Field Name (ID): Description
Type:
Message Bus Register
(Size: 32 bits)
Offset:
Op Codes:
h - Read, h - Write
h - Read, h - Write
31
28
24
20
16
12
8
4
0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
PWRG
A
T
EST
A
TUS_RES
E
RV
ED5
PWRG
A
T
EST
A
TUS_RES
E
RV
ED4
PWRG
A
T
EST
A
TUS_RES
E
RV
ED3
PWRG
A
T
EST
A
TUS_RES
E
RV
ED2
PW
RGA
T
EST
A
TUS_RX1
PW
RGA
T
EST
A
TUS_RX0
PW
R
G
A
T
E
S
TA
T
U
S
_
TX3
PW
R
G
A
T
E
S
TA
T
U
S
_
TX2
PW
R
G
A
T
E
S
TA
T
U
S
_
TX1
PW
R
G
A
T
E
S
TA
T
U
S
_
TX0
PW
R
G
A
T
E
S
TA
T
U
S
_
CM
N
LN
PWRG
A
T
EST
A
TUS_RES
E
RV
ED1
PWRGA
T
ES
TA
TUS_
DIS
PLA
Y
_
CTL
PWRG
A
T
EST
A
TUS_RES
E
RV
ED0
PWRGA
T
E
S
TA
TUS
_
MEDIA
PWRG
A
T
ES
TA
TUS_RE
N
D
ER
Bit
Range
Default &
Access
Field Name (ID): Description
31:30
0h
RW
PWRGATESTATUS_RESERVED5:
Reserved
29:28
0h
RW
PWRGATESTATUS_RESERVED4:
Reserved
27:26
0h
RW
PWRGATESTATUS_RESERVED3:
Reserved
25:24
0h
RW
PWRGATESTATUS_RESERVED2:
Reserved
23:22
0h
RW
PWRGATESTATUS_RX1:
Power gate status for RX. Status0x03 indicates powered off
state, 0x00 indicates powered on state.