Hwp Internal Registers; Sound Play Function Registers; Function Id Register; Interrupt Mask Register - Epson S1C31D50 Technical Manual

21 HW Processor (HWP) and Sound Output

21.6 HWP Internal Registers

The HWP internal registers are switched to the sound play function registers or the memory check function regis-
ters according to the set value of the FUNCTION.ID[7:0] bits when the HWPCTL.HWPEN bit is set to 1. Table
21.6.1 lists the HWP internal register map.
Address
Base + 0x00 FUNCTION
Base + 0x02 INTMASK
Base + 0x04 ROMADDR
Base + 0x08 ROMSIZE
Base + 0x0c KEYCODE
Base + 0x10 COMMAND_0 Ch.0 Command Register
Base + 0x12 COMMAND_1 Ch.1 Command Register
Base + 0x14 SENTENCE_0 Ch.0 Sentence Number Setting Register
Base + 0x16 SENTENCE_1 Ch.1 Sentence Number Setting Register
Base + 0x18 VOLUME_0
Base + 0x1a VOLUME_1
Base + 0x1c REPEAT_0
Base + 0x1e REPEAT_1
Base + 0x20 SPEED_0
Base + 0x40 STATE_0
Base + 0x42 STATE_1
Base + 0x44 ERROR
Base + 0x46 STATUS
Base + 0x48 –
Base + 0x4c VERSION

21.6.1 Sound Play Function Registers

Function ID Register

Register name Bit
FUNCTION 15–8 –
7–0 ID[7:0]
Bits 15–8 Reserved
Set to 0x00 when writing data to this register.
Bits 7–0 ID[7:0]
These bits select the function to be executed in the HWP.

Interrupt Mask Register

Register name Bit
INTMASK 15–8 –
(Sound Play)
7–4 –
3
2
1
0
21-18
Table 21.6.1 HWP Internal Register Map
Sound play function
Function ID Register
Interrupt Mask Register
ROM Address Register
ROM Size Register
Key Code Register
Ch.0 Volume Control Register
Ch.1 Volume Control Register
Ch.0 Repeat Control Register
Ch.1 Repeat Control Register
Ch.0 Playback Speed Conversion Register –
Ch.0 State Monitor Register
Ch.1 State Monitor Register
Error Status Register
Operating Status Register
–
Version Number Register
Bit name Initial
0x00
0x00
Table 21.6.2 Function ID
FUNCTION.ID[7:0] bits
0x03
0x02
0x01
Other
Bit name Initial
0x00
0x0
TO_MUTE 0
TO_PAUSE 0
TO_PLAY 0
TO_IDLE 0
Seiko Epson Corporation
Register name
Memory check function
FUNCTION Function ID Register
INTMASK Interrupt Mask Register
MEMADDR Memory Address Register
MEMSIZE Memory Size Register
INITVALUE Initial Value Setting Register
COMMAND Command Register
– –
– –
– –
– –
– –
– –
– –
–
STATE State Monitor Register
– –
ERROR Error Status Register
STATUS Operating Status Register
RESULT Calculation Result Register
VERSION Version Number Register
Reset R/W
– R –
H0 W
HWP function
Memory check function
Sound play function using T16B Ch.0
Sound play function using SDAC
Setting prohibited (error)
Reset R/W
– R –
– R
H0 W
H0 W
H0 W
H0 W
Base = 0x00156700
Remarks
Remarks
S1C31D50/D51 TECHNICAL MANUAL
(Rev. 2.00)