Description
Features:
- 6 channel stereo mixers
- 6 frequency generators with 8 octaves per generator, 256 tones per octave.
- 12 amplitude controllers
- 6 noise/freqeuncy mixers
- 2 noise generators
- 2 envelope generators
- capable of outputting 2 independent stereo channels of 3 bit digital output (although the chip has no DMA - sample playback can only be achieved in software or with additional hardware)
The chip can be emulated using SAASound.
SAM Native tracker formats:
Cross platform tracker formats:
- SAmadeus (ZX Spectrum emulation)
- https://saa1099tracker.borik.net/ (Web)
More info at http://velesoft.speccy.cz/saa1099-cz.htm
func pin pin func
/WR 1 18 Vcc
/CS 2 17 D7
A0 3 16 D6
OutR 4 15 D5
OutL 5 14 D4
Iref 6 13 D3
/DTACK 7 12 D2
CLK 8 11 D1
GND 9 10 D0
address function
------- ----------------
0 data to register
1 register select
\bit 7 6 5 4 3 2 1 0
reg.\
-------------------------------
00 | right | left | Amplitude channel 0
-------------------------------
01 | right | left | Amplitude channel 1
-------------------------------
02 | right | left | Amplitude channel 2
-------------------------------
03 | right | left | Amplitude channel 3
-------------------------------
04 | right | left | Amplitude channel 4
-------------------------------
05 | right | left | Amplitude channel 5
-------------------------------
06 | x | x | x | x | x | x | x | x | Reserved
-------------------------------
07 | x | x | x | x | x | x | x | x | Reserved
-------------------------------
08 | | Frequency channel 0
-------------------------------
09 | | Frequency channel 1
-------------------------------
0A | | Frequency channel 2
-------------------------------
0B | | Frequency channel 3
-------------------------------
0C | | Frequency channel 4
-------------------------------
0D | | Frequency channel 5
-------------------------------
0E | x | x | x | x | x | x | x | x | Reserved
-------------------------------
0F | x | x | x | x | x | x | x | x | Reserved
-------------------------------
10 | x | channel 1 | x | channel 0 | Octave select
-------------------------------
11 | x | channel 3 | x | channel 2 | Octave select
-------------------------------
12 | x | channel 5 | x | channel 4 | Octave select
-------------------------------
13 | x | x | x | x | x | x | x | x | Reserved
-------------------------------
14 | x | x | 5 | 4 | 3 | 2 | 1 | 0 | Channel frequency enable
-------------------------------
15 | x | x | 5 | 4 | 3 | 2 | 1 | 0 | Channel noise enable
-------------------------------
16 | x | x | NG 1 | x | x | NG 0 | Noise generator
-------------------------------
17 | x | x | x | x | x | x | x | x |
-------------------------------
18 | | x | | | | | | | Envelope generator 0
-------------------------------
19 | | x | | | | | | | Envelope generator 1
-------------------------------
1A | x | x | x | x | x | x | x | x |
-------------------------------
1B | x | x | x | x | x | x | x | x |
-------------------------------
1C | x | x | x | x | x | x | R |SE | R=Reset, SE=Sound Enable
-------------------------------
1D | x | x | x | x | x | x | x | x |
-------------------------------
1E | x | x | x | x | x | x | x | x |
-------------------------------
1F | x | x | x | x | x | x | x | x |
-------------------------------
Amplitude register (00h - 05h)
-----------------------------
0 = minimum amplitude (off), 15 = maximum amplitude
Frequency register (08h - 0Dh)
-----------------------------
0 = lowest, 255 = highest frequency
Octave select (10h - 12h)
---------------------------
value Frequency (input clk 8MHz)
0 31 Hz - 61 Hz
1 61 Hz - 122 Hz
2 122 Hz - 244 Hz
3 245 Hz - 488 Hz
4 489 Hz - 977 Hz
5 978 Hz - 1.95 kHz
6 1.96 kHz - 3.91 kHz
7 3.91 kHz - 7.81 kHz
Channel frequency enable (14h)
-------------------------------
0 = off, 1 = on
Channel noise enable (15h)
---------------------------
0 = off, 1 = on
Noise generator (16h)
----------------------
value Frequency (input clk 8MHz)
0 31.3 kHz
1 15.6 kHz
2 7.6 kHz
3 61 Hz - 15.6 kHz (FG 0 is used for NG 0 and
FG 3 is used for NG 1 )
Envelope generator (18h - 19h)
-------------------------------
bit 7 6 5 4 3 2 1 0
- - - - ----- -
| | | | | |
| | | | | +-| 0 = Left and right have same envelope
| | | | | | 1 = Right envelope is inverse of left
| | | | |
| | | | | | 0 = Zero amplitude
| | | | | | 1 = Maximum amplitude
| | | | | | 2 = Single decay \______
| | | | +-----| 3 = Repetitive decay \|\|\|\
| | | | | 4 = Single triangular /\_____
| | | | | 5 = Repetitive triangular /\/\/\/\
| | | | | 6 = Single attack /|_____
| | | | | 7 = Repetitive attack /|/|/|/|
| | | |
| | | +---------| 0 = 4 bits for envelope control
| | | | 1 = 3 bits for envelope control
| | |
| | | | 0 = Internal envelope clock (FG 1 is used for EG 0
| | +-----------| and FG 4 is used for EG 1)
| | | 1 = External envelope clock (address write pulse)
| |
| +-------------| not used
|
+---------------| 0 = Reset (no envelope control)
| 1 = Envelope control enabled
Reset, Sound Enable (1Ch)
--------------------------
SE 0 = All channels disabled
1 = All channels enabled
R 0 =
1 = Reset and synchronizes generators
