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Mode 6 * : In mode 6, port B pins function as address outputs or input ports. Input or output can be
specified on an individual bit basis. Setting PBDDR bits to 1 makes the corresponding port B pins
address outputs, while clearing the bits to 0 makes the pins input ports.
Port B pin functions in mode 6 are shown in figure 8-11
Port B
Mode 7 * : In mode 7, port B pins function as I/O ports. Input or output can be specified for each
pin on an individual bit basis. Setting PBDDR bits to 1 makes the corresponding port B pins
output ports, while clearing the bits to 0 makes the pins input ports.
Port B pin functions in mode 7 are shown in figure 8-12.
Note: * Modes 6 and 7 are not available in the ROMless versions.
Rev. 5.00, 12/03, page 258 of 1088
When PBDDR = 1
A15 (output)
A14 (output)
A13 (output)
A12 (output)
A11 (output)
A10 (output)
A9 (output)
A8 (output)
Figure 8-11 Port B Pin Functions (Mode 6)
Port B
Figure 8-12 Port B Pin Functions (Mode 7)
When PBDDR = 0
PB7 (input)
PB6 (input)
PB5 (input)
PB4 (input)
PB3 (input)
PB2 (input)
PB1 (input)
PB0 (input)
PB7 (I/O)
PB6 (I/O)
PB5 (I/O)
PB4 (I/O)
PB3 (I/O)
PB2 (I/O)
PB1 (I/O)
PB0 (I/O)
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