7.8
Port 7
7.8.1
Overview
Port 7 is an 8-bit input port that also provides the analog input pins for the A/D converter and
analog output pins for the D/A converter. The pin functions are the same in all modes. Figure 7.15
shows the pin configuration of port 7.
Port 7 pins
P77 (input)/AN7 (input)/DA1 (output)*
P76 (input)/AN6 (input)/DA0 (output)*
P75 (input)/AN5 (input)
P74 (input)/AN4 (input)
Port 7
P73 (input)/AN3 (input)
P72 (input)/AN2 (input)
P71 (input)/AN1 (input)
P70 (input)/AN0 (input)
Note: * The DA1 and DA0 pin functions apply to the H8/3337 Series only.
The H8/3397 Series does not have an on-chip D/A converter, and therefore has no DA1
and DA0 pin functions.
Figure 7.15 Port 7 Pin Configuration
7.8.2
Register Configuration and Descriptions
Table 7.15 summarizes the port 7 registers. Port 7 is a dedicated input port, and has no data
direction register.
Table 7.15 Port 7 Register
Name
Abbreviation
Read/Write
Initial Value
Address
Port 7 input data register
P7PIN
R
Undetermined H'FFBE
144
RENESAS [ RENESAS TECHNOLOGY CORP ]
