NEC VR4181 mPD30181 User Manual page 20

15.2.8 MCNTREG (0x0B00 0172) ........................................................................................................ 310
15.2.9 DVALIDREG (0x0B00 0178) ..................................................................................................... 311
15.2.10 SEQREG (0x0B00 017A) ........................................................................................................ 312
15.2.11 INTREG (0x0B00 017C) .......................................................................................................... 313
15.2.12 MCNVC_END (0x0B00 017E) ................................................................................................. 314
15.3 Operation Sequence ............................................................................................................. 315
15.3.1 Output (speaker) ........................................................................................................................ 315
15.3.2 Input (microphone) .................................................................................................................... 316
CHAPTER 16 KEYBOARD INTERFACE UNIT (KIU) ....................................................................... 317
16.1 General .................................................................................................................................... 317
16.2 Functional Description .......................................................................................................... 317
16.2.1 Automatic keyboard scan mode (Auto Scan mode) .................................................................. 318
16.2.2 Manual keyboard scan mode (Manual Scan mode) .................................................................. 318
16.2.3 Key press detection ................................................................................................................... 318
16.2.4 Scan operation .......................................................................................................................... 319
16.2.5 Reading scanned data ............................................................................................................... 320
16.2.6 Interrupts and status reporting ................................................................................................... 320
16.3 Register Set ............................................................................................................................ 321
16.3.1 KIUDATn (0x0B00 0180 to 0x0B00 018E) ................................................................................ 322
16.3.2 KIUSCANREP (0x0B00 0190) ................................................................................................... 323
16.3.3 KIUSCANS (0x0B00 0192) ........................................................................................................ 324
16.3.4 KIUWKS (0x0B00 0194) ............................................................................................................ 325
16.3.5 KIUWKI (0x0B00 0196) ............................................................................................................. 326
16.3.6 KIUINT (0x0B00 0198) .............................................................................................................. 327
CHAPTER 17 COMPACTFLASH CONTROLLER (ECU) .................................................................. 328
17.1 General .................................................................................................................................... 328
17.2 Register Set Summary ........................................................................................................... 328
17.3 ECU Control Registers .......................................................................................................... 331
17.3.1 INTSTATREG (0x0B00 08F8) ................................................................................................... 331
17.3.2 INTMSKREG (0x0B00 08FA) .................................................................................................... 332
17.3.3 CFG_REG_1 (0x0B00 08FE) .................................................................................................... 333
17.4 ECU Registers ........................................................................................................................ 334
17.4.1 ID_REV_REG (Index: 0x00) ...................................................................................................... 334
17.4.2 IF_STAT_REG (Index: 0x01) ..................................................................................................... 335
17.4.3 PWRRSETDRV (Index: 0x02) ................................................................................................... 336
17.4.4 ITGENCTREG (Index: 0x03) ..................................................................................................... 337
17.4.5 CDSTCHGREG (Index: 0x04) ................................................................................................... 338
17.4.6 CRDSTATREG (Index: 0x05) .................................................................................................... 339
17.4.7 ADWINENREG (Index: 0x06) .................................................................................................... 340
17.4.8 IOCTRL_REG (Index: 0x07) ...................................................................................................... 341
17.4.9 IOADSLBnREG (Index: 0x08, 0x0C) ......................................................................................... 342
17.4.10 IOADSHBnREG (Index: 0x09, 0x0D) ...................................................................................... 342
17.4.11 IOSLBnREG (Index: 0x0A, 0x0E) ............................................................................................ 343
17.4.12 IOSHBnREG (Index: 0x0B, 0x0F) ........................................................................................... 343
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User's Manual U14272EJ3V0UM