VS1103B Datasheet, PDF (46/61 Pages) List of Unclassifed Manufacturers – MIDI/ADPCM AUDIO CODEC

VLSI
Solution ^y
VS1103b
0000
0030
0500
Instruction (32−bit)
System Vectors
User
Instruction
RAM
1800
1880
1940
1C00
1E00
4000
8000
Instruction
ROM
X (16−bit)
X DATA
RAM
User
Space
Stack
X DATA
ROM
VS1103B
8. VS1103B REGISTERS
Y (16−bit)
0000
0030
Y DATA
RAM
0500
User
Space
Stack
1800
1880
1940
1C00
1E00
4000
Y DATA
ROM
8000
C000
C100
Hardware
Register
Space
Figure 14: User’s Memory Map.
C000
C100
8.6 DAC Registers
Reg
0xC013
0xC014
0xC015
0xC016
Type
rw
rw
rw
rw
Reset
0
0
0
0
DAC registers, prefix DAC
Abbrev[bits]
Description
FCTLL
DAC frequency control, 16 LSbs.
FCTLH
DAC frequency control 4MSbs, PLL control.
LEFT
DAC left channel PCM value.
RIGHT
DAC right channel PCM value.
Every fourth clock cycle, an internal 26-bit counter is added to by (DAC FCTLH & 15) × 65536 +
DAC FCTLL. Whenever this counter overflows, values from DAC LEFT and DAC RIGHT are read and
a DAC interrupt is generated.
Version 1.01, 2007-09-03
46