D12320VF25V Datasheet, PDF (297/1146 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 8 I/O Ports
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
When PBDDR = 1
A15 (output)
A14 (output)
A13 (output)
A12 (output)
A11 (output)
A10 (output)
A9 (output)
A8 (output)
When PBDDR = 0
PB7 (input)
PB6 (input)
PB5 (input)
PB4 (input)
PB3 (input)
PB2 (input)
PB1 (input)
PB0 (input)
Figure 8.11 Port B Pin Functions (Mode 6)
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.
Port B
PB7 (I/O)
PB6 (I/O)
PB5 (I/O)
PB4 (I/O)
PB3 (I/O)
PB2 (I/O)
PB1 (I/O)
PB0 (I/O)
Figure 8.12 Port B Pin Functions (Mode 7)
Note: * Modes 6 and 7 are not available in the ROMless versions.
Rev.7.00 Feb. 14, 2007 page 263 of 1108
REJ09B0089-0700