ak8823 AKM Semiconductor, Inc., ak8823 Datasheet - Page 65

• Manufacturer Part Number: ak8823
• Description: Hdtv & Ntsc/pal Multi-format Encoder Sdtv/hdtv X2 Oversampling 5ch Dacs
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
Powerdown Mode Control Register(R/W) [Address 0x06]
Register to sets Power-Down and Operation modes of the AK8823.
Sub Address 0x06
Power Down Mode Control Register
( note 1 ) Register setting to disable HD Block
DAC off : address 0x05 bits 2 ~ 0 [ 000 ]
PLL off : address 0x06 bit 2 [ 0 ]
( note 2 ) SD Port and HD Port in the Video Input block are powered-down by this setting.
MS0549-E-02
Bit0
Bit1
BIT
bit2
bit3
bit7
Reserved
－
～
bit 7
0
Register Name
PLL_SPD_N
BLKCNT1,0
Reserved
Reserved
bit 6
0
< SD Block / HD Block >
SD/HD BLOCK CNT
PLL Power Down
Reserved bit
Reserved
bit 5
0
Reserved
bit 4
R/W
R/W
R/W
R/W
0
Default Value
65
Definition
to control operation of SD / HD Blocks ( digital portion )
[ BLKCNT1 : BLKCNT0 ]-bit
00 : both SD /HD Blocks are enabled.
01 : HD Block only is enabled.
10 : SD Block only is enabled.
In this mode of operation, it is required to power-down DACs
and PLL in the HD Block.
( note 1 ) Refer to register setting to disable HD Block below.
11 : entire device is put into Power-Down mode ( note 2 ).
to control Power-Down of PLL
0 : Power-Down
1 : release from Power-Down
do not write other than “ 0 “s.
Reserved
bit 3
0
PLL_SPD_N
bit 2
0
BLKCNT1
bit 1
0
default Value 0x00
BLKCNT0
bit 0
2006/10
0
[AK8823]