Fujitsu MHN2100AT Manual/User Guide - Page 139
CHECK POWER MODE X'98' or X'E5, Sector Count register
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5.3 Host Commands (28) CHECK POWER MODE (X'98' or X'E5') The host checks the power mode of the device with this command. The host system can confirm the power save mode of the device by the contents of the Sector Count register. The device sets the BSY bit and sets the following register value. After that, the device clears the BSY bit and generates an interrupt. Power save mode • During moving to standby mode • Standby mode • During returning from the standby mode • Idle mode • Active mode Sector Count register X'00' X'FF' X'FF' At command issuance (I/O registers setting contents) 1F7 (CM) H 1F6H(DH) 1F5H(CH) 1F4H(CL) 1F3H(SN) 1F2 (SC) H 1F1 (FR) H X'98' or X'E5' xxx xx xx xx xx xx DV xx At command completion (I/O registers contents to be read) 1F7H(ST) 1F6H(DH) 1F5 (CH) H 1F4H(CL) 1F3H(SN) 1F2H(SC) 1F1H(ER) Status information x x x DV xx xx xx xx X'00' or X'FF' Error information C141-E120-02EN 5-63