參數(shù)資料
型號(hào): ZR36506
英文描述: Fast Recovery Rectifier Diodes
中文描述: 外圍芯片
文件頁(yè)數(shù): 81/99頁(yè)
文件大?。?/td> 452K
代理商: ZR36506
Zoran ZR 36506 USBV ision – Datasheet
Zoran Proprietary and Confidential
ZR 36506 US B and S tatus R egisters
12 -1
12 ZR36506 USB
AND
S
TATUS
R
EGI S TER S
The ZR36506 has some registers that allow the software driver to directly read and affect some
USB device parameters. These are specified in the following table:
Parameter
Register
Address
Usage
CONFIG_REG
Reg.1
CONFIG_REG
Read Only register. Contains the Device
Configuration number.
ADRS_REG
Reg.2/d6-d0
ADRS_REG
Read Only register. Contains the Device
Address.
ALTER_REG
Reg.3/d3-d0
ALTER_REG
Read Only register. Contains the Alternate
setting for End-Point #2 (video bandwidth).
Regarding this value as a binary number in
the range [1,15], the number of bytes sent in
the Isochronous pipe of EP2 in every
millisecond is:
N = (16-ALTER_REG)*64 - 1
USB Bandwidth = (16-ALTER_REG)*0.5
Mbit/sec
NEW_ALT
Reg.4/d3-d0
FORCE_ALTE
R_REG
New Alternate setting for End-Point #2,
(video bandwidth), to replace the original
setting. This can be used to lower the actual
used bandwidth temporarily, without
notifying the Operating System.
FORCE_ALT
Reg.4/d7
FORCE_ALTE
R_REG
Force New Alternate.
0:
1:
Use original setting.
Select NEW_ALT value.
VFRM_BLNK
Reg.5/d0
STATUS_REG
Read Only register.
0:
Valid region of input video frame.
1:
Blank or unused region of input video
frame.
.
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