2.9. 8580 SID REGISTER MAP

       7      6      5      4      3      2      1      0
   +------+------+------+------+------+------+------+------+
 0 |  F7  |  F6  |  F5  |  F4  |  F3  |  F2  |  F1  |  F0  | FREQUENCY LO  VOICE-1
 1 |  F15 |  F14 |  F13 |  F12 |  F11 |  F10 |  F9  |  F8  | FREQUENCY HI
 2 |  PW7 |  PW6 |  PW5 |  PW4 |  PW3 |  PW2 |  PW1 |  PW0 | PULSE WIDTH LO
 3 |      |      |      |      | PW11 | PW10 |  PW9 |  PH8 | PULSE WIDTH HI
 4 | NOISE| PULSE|  SAW |  TRI | TEST | RING | SYNC | GATE | CONTROL REGISTER
 5 | ATK3 | ATK2 | ATK1 | ATK0 | DCY3 | DCY2 | DCY1 | DCY0 | ATTACK / DECAY
 6 | STN3 | STN2 | STN1 | STN0 | RLS3 | RLS2 | RLS1 | RLS0 | SUSTAIN / RELEASE
   +------+------+------+------+------+------+------+------+
 7 |  F7  |  F6  |  F5  |  F4  |  F3  |  F2  |  F1  |  F0  | FREQUENCY LO  VOICE-2
 8 |  F15 |  F14 |  F13 |  F12 |  F11 |  F10 |  F9  |  F8  | FREQUENCY HI
 9 |  PW7 |  PW6 |  PW5 |  PW4 |  PW3 |  PW2 |  PW1 |  PW0 | PULSE WIDTH LO
10 |      |      |      |      | PW11 | PW10 |  PW9 |  PH8 | PULSE WIDTH HI
11 | NOISE| PULSE|  SAW |  TRI | TEST | RING | SYNC | GATE | CONTROL REGISTER
12 | ATK3 | ATK2 | ATK1 | ATK0 | DCY3 | DCY2 | DCY1 | DCY0 | ATTACK / DECAY
13 | STN3 | STN2 | STN1 | STN0 | RLS3 | RLS2 | RLS1 | RLS0 | SUSTAIN / RELEASE
   +------+------+------+------+------+------+------+------+
14 |  F7  |  F6  |  F5  |  F4  |  F3  |  F2  |  F1  |  F0  | FREQUENCY LO  VOICE-3
15 |  F15 |  F14 |  F13 |  F12 |  F11 |  F10 |  F9  |  F8  | FREQUENCY HI
16 |  PW7 |  PW6 |  PW5 |  PW4 |  PW3 |  PW2 |  PW1 |  PW0 | PULSE WIDTH LO
17 |      |      |      |      | PW11 | PW10 |  PW9 |  PH8 | PULSE WIDTH HI
18 | NOISE| PULSE|  SAW |  TRI | TEST | RING | SYNC | GATE | CONTROL REGISTER
19 | ATK3 | ATK2 | ATK1 | ATK0 | DCY3 | DCY2 | DCY1 | DCY0 | ATTACK / DECAY
20 | STN3 | STN2 | STN1 | STN0 | RLS3 | RLS2 | RLS1 | RLS0 | SUSTAIN / RELEASE
   +------+------+------+------+------+------+------+------+
21 |      |      |      |      |      |  FC2 |  FC1 |  FC0 | FREQUENCY LO  FILTER
22 | FC10 |  FC9 |  FC8 |  FC7 |  FC6 |  FC5 |  FC4 |  FC3 | FREQOENCY HI
23 | RES3 | RES2 | RES1 | RES0 |FILTEX| FILT3| FILT2| FILT0| RESONANCE / FILTER
24 | 3 OFF|  HP  |  BP  |  LP  | VOL3 | VOL2 | VOL1 | VOL0 | MODE / VOLUME
   +------+------+------+------+------+------+------+------+
25 |  PX7 |  PX6 |  PX5 |  PX4 |  PX3 |  PX2 |  PX1 |  PX0 | POT X         MISC.
26 |  PY7 |  PY6 |  PY5 |  PY4 |  PY3 |  PY2 |  PY1 |  PY0 | POT Y
27 |  O7  |  O6  |  O5  |  O4  |  O3  |  O2  |  O1  |  O0  | OSCILLATOR 3
28 |  E7  |  E6  |  E5  |  E4  |  E3  |  E2  |  E1  |  E0  | ENVELOPE 3
   +------+------+------+------+------+------+------+------+

   Notes:

   1. CIA#1 ports PRA6 and PRA7 select which control port POT line
      is routed to SID.

   2. While there are 2 SIDs in the C65, the POT lines are still
      routed to SID#1 for C64 compatibility reasons.

   GATE=Ton ein/aus
   SYNC =Sychronisation mit vorhergehendem VOICE (VOICE1 synched with VOICE3)
   RING =Ringmodulation mit vorhergehender VOICE (VOICE2 synched with VOICE1)
   TEST =Testbit (normalerweise unbenutzt)
   TRI  =Dreieckwelle
   SAW  =Saegezahnwelle
   PULSE=Rechteckwelle
NOISE=Rauschen

ATKx=ATTACK
DCYx=DECAY
STNx=SUSTAIN
RLSx=RELEASE