Port 9; Overview; Register Configuration And Description - Renesas H8 Series Hardware Manual

8.9

Port 9

8.9.1

Overview

Port 9 is a 5-bit I/O port, configured as shown in figure 8.8.
Note: * There is no P9
8.9.2

Register Configuration and Description

Table 8.23 shows the port 9 register configuration.
Table 8.23 Port 9 Registers
Name
Port data register 9
Port control register 9
Port Data Register 9 (PDR9)
Bit

1 *
Initial value

Read/Write
Notes: 1. Bits 7 to 6 are reserved; they are always read as 1 and cannot be modified.
2. Bit 5 is reserved; it is always read as 0 and cannot be modified.
3. In the on-chip flash memory version, this bit is always read as 0 and cannot be
modified.
Port 9
function in the flash memory version since P9
0
Figure 8.8 Port 9 Pin Configuration
Abbr.
PDR9
PCR9
7 6 5
 
1 1 * 1 0 *
 
P9
4
P9
3
P9
2
P9
1
P9 *
0
R/W Initial Value
R/W H'C0
W H'C0
4 3
P9 P9
4 3
2
0 0
R/W R/W
Rev. 6.00 Sep 12, 2006 page 199 of 526
Section 8 I/O Ports
is used as the FV
0 PP
Address
H'FFDC
H'FFEC
2 1
P9 P9 P9
2 1
0 0
R/W R/W R/W
REJ09B0326-0600
pin.
0
* 3
0
0