Changes
* The NC100 clock speed is 4.606Mhz, at this time it is unknown if the NC200
has a different clock speed.
* The NC100 on/off button generates an NMI.
* The NC200 on/off button generates a maskable interrupt.
Keyboard NC100:
B0:
bit 0: Shift (Left)
bit 1: Shift (Right)
bit 2: unused
bit 3: Cursor Left (Red)
bit 4: Return
bit 5: unused
bit 6: unused
bit 7: unused
B1:
bit 0: Function (Yellow)
bit 1: Control
bit 2: Stop
bit 3: Space
bit 4: unused
bit 5: unused
bit 6: 5
bit 7: unused
B2:
bit 0: Caps Lock
bit 1: Symbol
bit 2: 1
bit 3: Tab
bit 4: unused
bit 5: unused
bit 6: unused
bit 7: unused
B3:
bit 0: 3
bit 1: 2
bit 2: Q
bit 3: W
bit 4: E
bit 5: unused
bit 6: S
bit 7: D
B4:
bit 0: 4
bit 1: unused
bit 2: Z
bit 3: X
bit 4: A
bit 5: unused
bit 6: R
bit 7: F
B5:
bit 0: B
bit 1: V
bit 2: T
bit 3: Y
bit 4: G
bit 5: C
B6:
bit 0: 6
bit 1: Cursor Down (Blue)
bit 2: Del
bit 3: Cursor Right (Green)
bit 4: \
bit 5: /
bit 6: H
bit 7: N
B7:
bit 0: =
bit 1: 7
bit 2: ~
bit 3: Up
bit 4: Menu
bit 5: U
bit 6: M
bit 7: K
B8:
bit 0: 8
bit 1: -
bit 2: )
bit 3: (
bit 4: "
bit 5: I
bit 6: J
bit 7: ,
B9:
bit 0: 0
bit 1: 9
bit 2: Del
bit 3: P
bit 4: :
bit 5: L
bit 6: O
bit 7: STOP
Address Comment R/W
