Port 7; Overview; Register Configuration - Renesas Hitachi H8S/2194 Series Hardware Manual

11.9

Port 7

11.9.1

Overview

Port 7 is an 8-bit I/O port. Table 11.23 shows the port 7 configuration.
Port 7 consists of pins that are used both as standard I/O ports (P77 to P70) and HSW timing
generation circuit (programmable pattern generator: PPG) outputs (PPG7 to PPG0). It is
switched by port mode register 7 (PMR7) and port control register 7 (PCR7).
For the programmable generator (PPG), see section 28.4, HSW Timing Generation Circuit.
Table 11.23 Port 7 Configuration
Port Function
Port 7 P77 (standard I/O port)
P76 (standard I/O port)
P75 (standard I/O port)
P74 (standard I/O port)
P73 (standard I/O port)
P72 (standard I/O port)
P71 (standard I/O port)
P70 (standard I/O port)
11.9.2

Register Configuration

Table 11.24 shows the port 7 register configuration.
Table 11.24 Port 7 Register Configuration
Name
Port mode register 7
Port control register 7
Port control register 7
Note: * Lower 16 bits of the address.
Rev. 2.0, 11/00, page 280 of 1037
Abbrev. R/W
PMR7 R/W
PCR7 W
PDR7 R/W
Alternative Function
PPG7 (HSW timing output)
PPG6 (HSW timing output)
PPG5 (HSW timing output)
PPG4 (HSW timing output)
PPG3 (HSW timing output)
PPG2 (HSW timing output)
PPG1 (HSW timing output)
PPG0 (HSW timing output)
Size Initial Value
Byte H'00
Byte H'00
Byte H'00
Address*
H'FFDE
H'FFD7
H'FFC7