Devices

• Busy-waits
• Interrupt handling
• Digital Input Port

Address: $1003 (Port C)
Initialization: None
Format:

B7

B6

B5

B4

B3

B2

B1

B0

Input Operations: Reading port obtains current values of digital inputs
Output Operations: None within the scope of this class
• Motor Port

Address: $1004(Port B)
Initialization: None
Format:

E4

E3

E2

E1

D4

D3

D2

D1

Input Operations: Old contents are available, so logical operations are possible.
Output Operations: Writing data to register causes motor operation. E is motor enable bits, D is motor direction bits.
• Analog Port
• Timer
• Serial Port