diff --git a/AppleIISd.json b/AppleIISd.json
new file mode 100644
index 0000000..08f0255
--- /dev/null
+++ b/AppleIISd.json
@@ -0,0 +1,17 @@
+{signal: [
+ ['Apple',
+  {name: '7M', 		wave: 'n........', period: 2 },
+  {name: 'Phi0', 	wave: 'hl......h......l..'},
+  {name: 'Q3',		wave: 'lh...l..h...l..h..'},
+  {name: 'ADD',		wave: 'x.....=.........x.', data: "IO-Address", phase: 0.5},
+  {name: '/DEV_SEL',wave: 'h.......0......1..'},
+ {},
+  {name: 'R/W',		wave: 'x.....=.........x.', phase: 0.5},
+  {name: 'DATA',	wave: 'x.....z..x.=....z.', phase: 0.5},
+ ],
+ {},
+ ['Card',
+  {name: 'Address',	wave: 'x........=.......x'},
+  {name: 'DATA',	wave: 'x........z.=....z.', data: 'FromPeripheral', phase: 0.5},
+ ],
+]}