Difference between revisions of "Peripheral 2 Register"

Revision as of 21:16, 20 December 2018

Number	$06
Readable	Yes
Writable	Yes
Short Description	Enables Acceleration, Lightpen, DivMMC, Multiface, Mouse and AY audio.

Bit	Function
7	Enable turbo mode, 0 = disabled (0 after PoR or Hard-reset)
6	DAC chip mode (0 = I2S, 1 = JAP) (Only VTrucco board, 0 after PoR or Hard-reset)
5	Enable Lightpen (1 = enabled) (0 after PoR or Hard-reset)
4	DivMMC automatic paging (1 = enabled) (0 after PoR or Hard-reset)
3	Enable Multiface (1 = enabled) (0 after PoR or Hard-reset)
2	PS/2 mode (0 = keyboard, 1 = mouse), exchanges the keyboard/mouse pins on the PS/2 connector (0 after PoR or Hard-reset)
1-0	Audio chip mode (%00 = AY, %10 = YM, %10 = Disabled) (a typo in documentation, defining %10 twice, I guess YM is %01)

@@ Line 5: / Line 5: @@
 |ShortDesc=Enables [[Acceleration]], [[Lightpen]], [[DivMMC]], [[Multiface]], [[Mouse]] and [[AY]] audio.
 }}
+{| class="wikitable"
+! Bit !! Function
+|-
+| 7 || Enable turbo mode, 0 = disabled (0 after PoR or Hard-reset)
+|-
+| 6 || DAC chip mode (0 = I2S, 1 = JAP) (Only VTrucco board, 0 after PoR or Hard-reset)
+|-
+| 5 || Enable Lightpen (1 = enabled) (0 after PoR or Hard-reset)
+|-
+| 4 || DivMMC automatic paging (1 = enabled) (0 after PoR or Hard-reset)
+|-
+| 3 || Enable Multiface (1 = enabled) (0 after PoR or Hard-reset)
+|-
+| 2 || PS/2 mode (0 = keyboard, 1 = mouse), exchanges the keyboard/mouse pins on the PS/2 connector (0 after PoR or Hard-reset)
+|-
+| 1-0 || Audio chip mode (%00 = AY, %10 = YM, %10 = Disabled) (a typo in documentation, defining %10 twice, I *guess* YM is %01)
+|}