Renesas Hitachi H8S/2191, Hardware Manual, Page: 266 / 1065

Rev. 2.0, 11/00, page 239 of 1037
11.2.2 Register Configuration
Table 11.3 shows the port 0 register configuration.
Table 11.3 Port 0 Register Configuration
Name Abbrev. R/W Size Initial Value Address *
Port mode register 0 PMR0 R/W Byte H'00 H'FFCD
Port data register 0 PDR0 R Byte

H'FFC0
Note:
*
Lower 16 bits of the address.
(1) Port Mode Register 0 (PMR0)
0
0
1
0
R/W
2
0
R/W
3
0
4
0
R/W
0
R/W
5
0
7
0
R/W R/W R/W R/W
6
PMR04 PMR03 PMR02 PMR01 PMR00 PMR07 PMR06 PMR05
Bit :
Initial value :
R/W :
Port mode register 0 (PMR0) controls switching of each pin function of port 0. The switching is
specified in a unit of bit.
PMR0 is an 8-bit read/write enable register. When reset, PMR0 is initialized to H'00.
Bits 7 to 0: P07/AN7 to P00/AN0 Pin Switching (PMR07 to PMR00)
PMR07 to PMR00 sets whether the P0n/ANn pin is used as a P0n input pin or an ANn pin for
the analog input channel of an A/D converter.
Bit n
PMR0n Description
0 The P0n/ANn pin functions as a P0n input pin (Initial value)
1 The P0n/ANn pin functions as an ANn input pin
(n = 7 to 0)