6881076C25-E
September 5, 2008
Theory of Operation:
ASTRO Spectra VOCON Board
3-27
Figure 3-13. Vocoder Memory Mapping
The ADSIC internal registers are decoded internally and start at $E000 in Dy:. These registers are
decoded using A0-A2, A13-A15, and PS* from the DSP. The ADSIC internal registers are 16 bits
wide, so only D8-D23 are used.
$0000
$01FF
$0FFF
$0200
$1000
$1FFF
$E000
$DFFF
External
RAM
U403
$2000
$7FFF
$FFFF
External
RAM
U402
$8000
Dy
Dx
P
ADS Vectors
ADSIC
Registers
$9FFF
$A000
External ROM
16KB Physical
Banks
$00000-1FFFF
Internal P Ram
ADS P Ram
Not Used
External ROM
16KB Physical
Banks
$20000-3FFFF
Internal X Rom
Internal Y Rom
MAEPF-26007-A
Internal Dx Ram
ADS Dx Ram
Internal Dy Ram
ADS Dy Ram
External
RAM
U401
Содержание ASTRO Digital Spectra
Страница 1: ...ASTRO Digital Spectra and Digital Spectra Plus UHF VHF 800 MHz Mobile Radios Detailed Service Manual ...
Страница 2: ......
Страница 6: ...September 5 2008 6881076C25 E iv Document History Notes ...
Страница 20: ...xviii List of Tables September 5 2008 6881076C25 E Notes ...
Страница 24: ...September 5 2008 6881076C25 E xxii CommercialWarranty Notes ...
Страница 48: ...September 5 2008 6881076C25 E xlvi Model Numbering Charts and Specifications Notes ...
Страница 142: ...September 5 2008 6881076C25 E 3 82 Theory of Operation Power Amplifiers Notes ...
Страница 218: ...September 5 2008 6881076C25 E 4 76 Troubleshooting Procedures Power Amplifier Procedures Notes ...
Страница 258: ...September 5 2008 6881076C25 E 6 14 Troubleshooting Waveforms ASTRO Digital Spectra Plus VOCON Board Waveforms Notes ...
Страница 434: ...September 5 2008 6881076C25 E Glossary 10 Notes ...
Страница 440: ...Index 6 September 5 2008 6881076C25 E Notes ...
Страница 441: ......