Port 7; Overview - Hitachi H8S/2199 Hardware Manual

10.8

Port 7

10.8.1

Overview

Port 7 is an 8-bit I/O port. Table 10.20 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 26.4, HSW (Head-switch) Timing Generation
Circuit.
Table 10.20 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)
Rev. 1.0, 02/00, page 228 of 1141
Alternative Function
PPG7 (HSW timing output)
RPB (realtime output port)
PPG6 (HSW timing output)
RPA (realtime output port)
PPG5 (HSW timing output)
RP9 (realtime output port)
PPG4 (HSW timing output)
RP8 (realtime output port)
PPG3 (HSW timing output)
PPG2 (HSW timing output)
PPG1 (HSW timing output)
PPG0 (HSW timing output)