Hitachi HTS541680J9AT00 Specifications - Page 145

Travelstar 5K160 (PATA) Hard Disk Drive Specification PIO Default Transfer Mode,Disable IORDY 00000 001 PIO Flow Control Transfer Mode x Multiword DMA mode x Ultra DMA mode x 00001 nnn 00100 nnn 01000 nnn (nnn=000,001,010,011,100) (nnn=000,001,010) (nnn=000,001,010,011,100,101) When Feature register is 05h (=Enable Advanced Power Management), the Sector Count Register specifies the Advanced Power Management level. C0h - FEh ... The deepest Power Saving mode is Active Idle 80h - BFh ... The deepest Power Saving mode is Low power Idle 01h - 7Fh ... The deepest Power Saving mode is Standby 00h, FFh ... Aborted Note 2. If the number of auto reassigned sectors reaches the device's reassignment capacity, the write cache function will be automatically disabled. Although the device still accepts the Set Features command (with Feature register = 02h) without error, the write cache function will remain disabled. For current write cache function status, please refer to the Identify Device Information(129word) by Identify Device command. Hard reset or power off must not be done in 5 seconds after write command completion when write cache is enabled. Note 3. When Feature register is 85h (=Disable Advanced Power Management), the deepest Power Saving mode becomes Active Idle. Note 4. When Feature register is 42h (=Enable Automatic Acoustic Management), the Sector Count Register specifies the Automatic Acoustic Management level. 80h - BFh ... The seek mode is set to Quiet seek mode C0h - FEh ... The seek mode is set to Normal seek mode 00h - 7Fh, Invalid setting. The command is aborted FFh ... When Feature register is C2h (=Disable Automatic Acoustic Management), the seek mode is set to Normal mode. The setting is preserved across power cycle. The shipping default is "Normal seek mode". 145/188