STW4810_0709 Datasheet, PDF (29/79 Pages) STMicroelectronics – Power management for multimedia processors

Functional description
STw4810
Power control register at address 1Eh
Table 19. Power control register - General information (Address = 1Eh)
Register
7
6
5
4
3
2
1
0
Bit name
reg address 3 bits LSB’s
data din/dout 4 bits
EN
Type
R/W
R/W
R/W
Bits
Name
Value
Settings
[7:5]
reg address 3
bits
[4:1]
data din/
dout 4 bits
See Table 21 “Address” column (LSB’s).
See Table 21 control register
0 EN
0 Read enabled
1 Write enabled
Power control register at address 1Fh
Default
0
0
0
Table 20. Power control register - General information (Address = 1Fh)
Register
15
14
13
12
11
10
9
8
Bit name
Not used
reg address 2 bits
MSB’s
Type
R/W
Bits
Name
Value
Settings
[9:8]
reg address 2
bits MSB’s
See Table 21 “Address” column (MSB’s).
Power control register mapping
Default
0
Table 21. Power control register mapping
Address 1Fh
Address 1Eh
Not used
reg address
2 bits
MSB’s
3 bits
LSB’s
data din/dout
4 bits
EN
Comments
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
00h to 04h
05h to 0Ah
Setting
Test purpose
See Table 22 to Table 27
0Bh to 1E
Test purpose
Caution: Only the latest value written in register at address 1E/1F can be read.
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