Datasheet

Table Of Contents
Section 9 I/O Ports
Page 256 of 846 REJ09B0140-0900 Rev. 9.00
Sep 16, 2010
H8S/2215 Group
9.7.5 Pin Functions
Port B pins also function as address bus (A15 to A9) output pins. The correspondence between the
register specification and the pin functions is shown below.
Table 9.27 PB7 Pin Function
Operating mode Modes 4 to 6 Mode 7
AE3 to AE0 B'1xxx Other than B'1xxx
PB7DDR — 0 1 0 1
Pin function A15 output PB7 input PB7 output PB7 input PB7 output
Table 9.28 PB6 Pin Function
Operating mode Modes 4 to 6 Mode 7
AE3 to AE0 B'0111 or
B'1xxx
Other than B'0111 or B'1xxx
PB6DDR — 0 1 0 1
Pin function A14 output PB6 input PB6 output PB6 input PB6 output
Table 9.29 PB5 Pin Function
Operating mode Modes 4 to 6 Mode 7
AE3 to AE0 B'011x or
B'1xxx
Other than B'011x or B'1xxx
PB5DDR — 0 1 0 1
Pin function A13 output PB5 input PB5 output PB5 input PB5 output
Table 9.30 PB4 Pin Function
Operating mode Modes 4 to 6 Mode 7
AE3 to AE0 Other than
B'0100 or
B'00xx
B'0100 or B'00xx
PB4DDR — 0 1 0 1
Pin function A12 output PB4 input PB4 output PB4 input PB4 output