Port 5; Overview; Register Configuration - Renesas Hitachi H8S/2194 Series Hardware Manual

11.7

Port 5

11.7.1

Overview

Port 5 is a 4-bit I/O port. Table 11.17 shows the port 5 configuration.
Port 5 consists of pins that are used both as standard I/O ports (P53 to P50) and realtime output
port trigger input (TRIG), timer B event input (TMBI), or A/D conversion start external trigger
'75*
input ( ). It is switched by port mode register 5 (PMR5), A/D trigger select register
(ADTSR), and port control register 5 (PCR5).
Table 11.17 Port 5 Configuration
Port Function
Port 5 P53 (standard I/O port)
P52 (standard I/O port)
P51 (standard I/O port)
P50 (standard I/O port)
11.7.2

Register Configuration

Table 11.18 shows the port 5 register configuration.
Table 11.18 Port 5 Register Configuration
Name
Port mode register 5
Port control register 5
Port data register 5
Note: Lower 16 bits of the address.
*
Abbrev. R/W
PMR5 R/W
PCR5 W
PDR5 R/W
Alternative Function
TRIG (realtime output port trigger input)
TMBI (timer B event input)
None
$'75*
(A/D conversion start external
trigger input)
Size Initial Value
Byte H'F1
Byte H'F0
Byte H'F0
Rev. 2.0, 11/00, page 267 of 1037
Address*
H'FFDC
H'FFD5
H'FFC5