MASK_DATA0=not_mask, CCLK_CTRL=on, CCLK_ENB=off
Clock Control Register
| CCLK_DIV | Card Clock Divider |
| CCLK_ENB | Card Clock Enable 0 (off): Card Clock is off 1 (on): Card Clock is on |
| CCLK_CTRL | Card Clock Output Control 0 (on): Card clock is always on 1 (off_idle): Turn off card clock when FSM is in IDLE state |
| MASK_DATA0 | 0 (not_mask): Do not mask data0 when update clock 1 (mask): Mask data0 when update clock |