•DEV is reserved.

•Bit0-bit3 is defined for the binary coded address of the head to be selected in CHS mode (e.g. if H3 through HS0 are 0011b, respectively, then head 3 will be selected). HS3 is the most significant bit. In 28 bit LBA mode bit0-3 HS3 contains bits 24-27 of the LBA. After command completion, this register is updated to reflect the currently selected disk address.

•LBA is to select the Logical Block Addressing Mode. When LBA=0, disk addressing is by CHS mode.

•When LBA=1, disk addressing is by LBA mode. This bit was set to zero when the ATA drive didn’t support LBA mode.

6.3.4.10Status Register (Ex. 1F7h)

This register contains the drive status. The contents of this register are updated at the completion of each command. When BSY is cleared, the other bits in this register become valid within 400 nsec. If BSY=1, no other bits in this register are valid. If the host reads this register when an interrupt is pending, it is considered to be the interrupt acknowledge. Any pending interrupt is cleared whenever this register is read.

7

6

5

4

3

2

1

0

BSY

DRDY

#

#

DRQ

Obsolete

Obsolete

ERR

 

 

 

 

 

 

 

 

•B S Y (Busy) is set whenever the drive has access to the Command Block registers. The host should not access the Command Block registers when BSY=1. When BSY=1, a read of any Command Block register returns the contents of the Status register.

•D R D Y (Drive Ready) indicates that the drive is capable of responding to a command. When there is an error, this bit does not change until the host reads the Status register. Then the bit again indicates the current readiness of the drive. This bit clears at power-on and remains clear until the drive is ready to accept the command.

•D R Q (Data Request) indicates that the drive is ready to transfer a word or byte of data between the host and the drive.

•E R R (Error) indicates that an error occurred during execution of the previous command. The bits in the Error register have additional information regarding the cause of the error.

Spinpoint M8-DVR Disti Product Manual REV 2.0

41

Page 46 Page 48
Page 47
Image 47
Samsung M8-DVR manual Status Register Ex F7h
Page 46 Page 48

M8-DVR specifications

The Samsung M8-DVR is an advanced digital video recorder designed to meet the ever-evolving demands of modern surveillance and recording needs. This cutting-edge device combines state-of-the-art technology with user-friendly features, making it a reliable choice for both residential and commercial applications.

At the core of the M8-DVR’s design is its high-definition recording capability. The device supports various resolutions, including Full HD 1080p, ensuring that all captured footage is crystal clear. This clarity is crucial for identifying details, whether for security purposes or monitoring activities around the clock. It can accommodate multiple camera inputs, allowing users to expand their surveillance network seamlessly.

One of the standout features of the M8-DVR is its remarkable storage capacity. Equipped with advanced hard disk technology, it can store several terabytes of footage, which can be further expanded using additional drives. This means that even with continuous recording, users won’t have to worry about running out of storage quickly. The device also incorporates efficient compression technologies, such as H.265, which allows for reduced file sizes without sacrificing video quality.

In terms of connectivity, the M8-DVR offers various options, including Ethernet ports for network connectivity, USB ports for data transfer, and HDMI output for direct connection to monitors. This versatility allows users to easily stream live footage or review recordings on larger screens. The device supports remote viewing through mobile applications, allowing users to monitor their property from virtually anywhere in real-time.

User experience is further enhanced by an intuitive interface that makes navigation simple and efficient. It includes features like motion detection and alerts, which notify users of any unusual activities. The advanced search function is another highlight, enabling users to quickly locate specific events in their recordings without long hours of scrolling.

The Samsung M8-DVR is also designed with durability in mind. It comes with robust security features to protect against unauthorized access and offers backup options to prevent data loss. With its blend of technology, storage capabilities, and user-friendly design, the Samsung M8-DVR stands out as a comprehensive solution for modern video surveillance needs, making it an essential tool for enhancing security and peace of mind in any environment.
Top Page Image Contents