Differences

This shows you the differences between two versions of the page.

--- hardware:i_o_ports [2016/06/13 23:03]
ex_writer [Input/Output Ports]
+++ hardware:i_o_ports [2016/06/13 23:20] (current)
ex_writer [Input/Output Ports]
@@ Line 13: / Line 13: @@
 | 8H | CONCM | Consumer/Commercial mode | INTST | [[hardware:magic system#intercept|Intercept]] Status Feedback |
 | 9H | HORCB | [[hardware:color#frame color|Frame color]], [[hardware:color#horizontal color boundary|Horizontal Color Boundary]] | | |
-| AH | VERBL | Vertical Blank Register | | |
+| AH | VERBL | Vertical Blanking Line | | |
 | BH | COLBX | Color Block Transfer | | |
 | CH | MAGIC | [[hardware:magic system#magic register|Magic Register]] | | |
@@ Line 23: / Line 23: @@
 | 12H | TONEB | Tone B Frequency | SW2 | Player 3 Control Handle |
 | 13H | TONEC | Tone C Frequency | SW3 | Player 4 Control Handle |
-| 14H | VIBRA | Vibrato/Tremolo | KEY0 | Keypad Column 0 (right) |
+| 14H | VIBRA | Vibrato Speed/Depth | KEY0 | Keypad Column 0 (right) |
-| 15H | VOLC |Tone C Volume, Noise Modulation Control | KEY1 | Keypad Column 1 |
+| 15H | VOLC | Modulation Type (Noise/Vibrato), Tone C Volume | KEY1 | Keypad Column 1 |
-| 16H | VOLAB | Tone A Volume, Tone B Volume | KEY2 | Keypad Column 2 |
+| 16H | VOLAB | Tone B Volume, Tone A Volume | KEY2 | Keypad Column 2 |
 | 17H | VOLN | Noise Volume | KEY3 | Keypad Column 3 (left) |
 | 18H | SNDBX | Sound Block Transfer | | |