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Page xlvii of liv
42.5
Usage Notes .................................................................................................................... 2463
42.5.1
Notes on Accessing Registers ......................................................................... 2463
42.5.2
Notes on Flush Processing .............................................................................. 2463
Section 43 Sound Generator ............................................................................2465
43.1
Features........................................................................................................................... 2465
43.2
Input/Output Pins............................................................................................................ 2466
43.3
Register Descriptions ...................................................................................................... 2466
43.3.1
Sound Generator Control Register 1 (SGCR1) ............................................... 2469
43.3.2
Sound Generator Control Status Register (SGCSR) ....................................... 2471
43.3.3
Sound Generator Control Register 2 (SGCR2) ............................................... 2472
43.3.4
Sound Generator Loudness Register (SGLR) ................................................. 2473
43.3.5
Sound Generator Tone Frequency Register (SGTFR) .................................... 2473
43.3.6
Sound Generator Reference Frequency Register (SGSFR) ............................ 2474
43.4
Operation ........................................................................................................................ 2475
43.4.1
Base Operation................................................................................................ 2475
43.4.2
Tone Frequency Setting .................................................................................. 2479
43.4.3
Auto Attenuator Function ............................................................................... 2480
43.4.4
Output Waveform ........................................................................................... 2481
43.5
Interrupt Source .............................................................................................................. 2481
43.6
Usage Note...................................................................................................................... 2482
43.6.1
Module Stop Mode Settings............................................................................ 2482
Section 44 SD Host Interface...........................................................................2483
Section 45 MMC Host Interface ......................................................................2485
45.1
Features........................................................................................................................... 2485
45.2
Input/Output Pins............................................................................................................ 2486
45.3
Register Descriptions ...................................................................................................... 2487
45.3.1
Command Setting Register (CE_CMD_SET) ................................................ 2488
45.3.2
Argument Register (CE_ARG)....................................................................... 2492
45.3.3
Argument Register for Automatically-Issued CMD12
(CE_ARG_CMD12) ....................................................................................... 2492
45.3.4
Command Control Register (CE_CMD_CTRL)............................................. 2493
45.3.5
Transfer Block Setting Register (CE_BLOCK_SET)..................................... 2494
45.3.6
Clock Control Register (CE_CLK_CTRL)..................................................... 2495
45.3.7
Buffer Access Configuration Register (CE_BUF_ACC)................................ 2497
45.3.8
Response Registers 3 to 0 (CE_RESP3 to CE_RESP0) ................................. 2499
45.3.9
Response Register for Automatically-Issued CMD12
(CE_RESP_CMD12) ...................................................................................... 2501