Table 41: External Clock Pinouts
Pin
Description
A6
Reserved
A7
Reserved
A8
Reserved
B1
PortB Rx, Ring
B2
PortB Rx, Tip
B3
Reserved
B4
PortB Rx, Ring
B5
PortB Rx, Tip
B6
Reserved
B7
Reserved
B8
Reserved
(Continued)
Direction
–
–
–
Input
Input
–
Output
Output
–
–
–
105