Datasheet

Section 8 I/O Ports
Rev.7.00 Dec. 24, 2008 Page 231 of 698
REJ09B0074-0700
8.4.4 Pin Functions
Pin Functions of H8S/2218 Group
Port 7 pins also function as bus control output pins and manual reset input pins. The
correspondence between the register specification and the pin functions is shown below.
Table 8.23 P74 Pin Function
MRESE 0 1
P74DDR 0 1 ⎯
Pin Function P74 input pin P74 output pin MRES input pin
Table 8.24 P71 Pin Function
Operating Mode Modes 4 to 6 Mode 7
P71DDR 0 1 0 1
Pin Function P71 input pin CS5 output pin P71 input pin P71 output pin
Table 8.25 P70 Pin Function
Operating Mode Modes 4 to 6 Mode 7
P70DDR 0 1 0 1
Pin Function P70 input pin CS4 output pin P70 input pin P70 output pin
Pin Functions of H8S/2212 Group
Port 7 pins also function as H-UDI pins. The correspondence between the register specification
and the pin functions is shown below.
Table 8.26 P77 Pin Function
EMLE 0 1
P77DDR 0 1 ⎯
Pin Function P77 input pin P77 output pin TDO output pin