Epson Arm S1C31 Series Technical Manual page 13

21.4 Operations ................................................................................................................... 21-3
21.4.1 Initialization .................................................................................................... 21-3
21.4.2 Operating Modes ........................................................................................... 21-4
21.4.3 RFC Counters ................................................................................................ 21-4
21.4.4 Converting Operations and Control Procedure ............................................. 21-5
21.4.5 CR Oscillation Frequency Monitoring Function ............................................. 21-7
21.5 Interrupts ...................................................................................................................... 21-7
21.6 Control Registers ......................................................................................................... 21-8
RFC Ch.n Clock Control Register ....................................................................................... 21-8
RFC Ch.n Control Register ................................................................................................. 21-8
RFC Ch.n Oscillation Trigger Register ................................................................................ 21-9
RFC Ch.n Measurement Counter Low and High Registers ............................................... 21-10
RFC Ch.n Time Base Counter Low and High Registers .................................................... 21-10
RFC Ch.n Interrupt Flag Register ...................................................................................... 21-11
RFC Ch.n Interrupt Enable Register .................................................................................. 21-11
22 HW Processor (HWP) and Sound Output (SDAC2) .................................................22-1
22.1 Overview ...................................................................................................................... 22-1
22.2 Output Pins and External Connections ........................................................................ 22-2
22.2.1 List of Output Pins ......................................................................................... 22-2
22.2.2 External Connections .................................................................................... 22-3
22.3 Clock Settings .............................................................................................................. 22-4
22.3.1 HWP Operating Clock ................................................................................... 22-4
22.3.2 Clock Supply in SLEEP Mode ....................................................................... 22-4
22.3.3 Clock Supply in DEBUG Mode ...................................................................... 22-4
22.4 Operations ................................................................................................................... 22-5
22.4.1 Sound Play Function...................................................................................... 22-5
22.4.2 Memory Check Function .............................................................................. 22-13
22.4.3 External QSPI Flash Memory Access ........................................................... 22-17
22.5 Interrupts ..................................................................................................................... 22-18
22.6 HWP Internal Registers ............................................................................................... 22-18
22.6.1 Sound Play Function Registers .................................................................... 22-19
Function ID Register .......................................................................................................... 22-19
Interrupt Mask Register ..................................................................................................... 22-19
ROM Address Register ...................................................................................................... 22-19
ROM Size Register ............................................................................................................ 22-20
Key Code Register ............................................................................................................. 22-20
Ch.n Command Register ................................................................................................... 22-20
Ch.n Sentence Number Setting Register .......................................................................... 22-21
Ch.n Volume Control Register ........................................................................................... 22-21
Ch.n Repeat Control Register ............................................................................................ 22-21
Ch.0 Playback Speed Conversion Register ...................................................................... 22-22
Ch.0 Playback Pitch Conversion Register ......................................................................... 22-22
Ch.n State Monitor Register .............................................................................................. 22-23
Error Status Register ......................................................................................................... 22-24
Operating Status Register ................................................................................................. 22-24
Version Number Register ................................................................................................... 22-24
22.6.2 Memory Check Function Register ................................................................ 22-25
Function ID Register .......................................................................................................... 22-25
Interrupt Mask Register ..................................................................................................... 22-25
Memory Address Register ................................................................................................. 22-25
Memory Size Register........................................................................................................ 22-26
Initial Value Setting Register .............................................................................................. 22-26
Command Register ............................................................................................................ 22-26
State Monitor Register ....................................................................................................... 22-26
Error Status Register ......................................................................................................... 22-27
S1C31D41 TECHNICAL MANUAL
(Rev. 1.1)
Seiko Epson Corporation
CONTENTS
xi