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Section 8 I/O Ports
Rev. 6.00 Sep 12, 2006 page 187 of 526
REJ09B0326-0600
Port Data Register 5 (PDR5)
Bit
7 6 5 4 3 2 1 0
P5
7
P5
6
P5
5
P5
4
P5
3
P5
2
P5
1
P5
0
Initial
value 0 0 0 0 0 0 0 0
Read/Write
R/W R/W R/W R/W R/W R/W R/W R/W
PDR5 is an 8-bit register that stores data for port 5 pins P5
7
to P5
0
. If port 5 is read while PCR5
bits are set to 1, the values stored in PDR5 are read, regardless of the actual pin states. If port 5 is
read while PCR5 bits are cleared to 0, the pin states are read.
Upon reset, PDR5 is initialized to H'00.
Port Control Register 5 (PCR5)
Bit
7 6 5 4 3 2 1 0
PCR5
7
PCR5
6
PCR5
5
PCR5
4
PCR5
3
PCR5
2
PCR5
1
PCR5
0
Initial
value 0 0 0 0 0 0 0 0
Read/Write W W W W W W W W
PCR5 is an 8-bit register for controlling whether each of the port 5 pins P5
7
to P5
0
functions as an
input pin or output pin. Setting a PCR5 bit to 1 makes the corresponding pin an output pin, while
clearing the bit to 0 makes the pin an input pin.
Upon reset, PCR5 is initialized to H'00.
PCR5 is a write-only register, which is always read as all 1s.
Port Pull-Up Control Register 5 (PUCR5)
Bit
7 6 5 4 3 2 1 0
PUCR5
7
PUCR5
6
PUCR5
5
PUCR5
4
PUCR5
3
PUCR5
2
PUCR5
1
PUCR5
0
Initial
value 0 0 0 0 0 0 0 0
Read/Write
R/W R/W R/W R/W R/W R/W R/W R/W
PUCR5 controls whether the MOS pull-up of each port 5 pin is on or off. When a PCR5 bit is
cleared to 0, setting the corresponding PUCR5 bit to 1 turns on the MOS pull-up for the
corresponding pin, while clearing the bit to 0 turns off the MOS pull-up.
Upon reset, PUCR5 is initialized to H'00.
Summary of Contents for F-ZTAT H8/3642A Series
Page 6: ...Rev 6 00 Sep 12 2006 page iv of xx ...
Page 8: ...Rev 6 00 Sep 12 2006 page vi of xx ...
Page 22: ...Rev 6 00 Sep 12 2006 page xx of xx ...
Page 124: ...Section 5 Power Down Modes Rev 6 00 Sep 12 2006 page 102 of 526 REJ09B0326 0600 ...
Page 188: ...Section 6 ROM Rev 6 00 Sep 12 2006 page 166 of 526 REJ09B0326 0600 ...
Page 190: ...Section 7 RAM Rev 6 00 Sep 12 2006 page 168 of 526 REJ09B0326 0600 ...
Page 298: ...Section 9 Timers Rev 6 00 Sep 12 2006 page 276 of 526 REJ09B0326 0600 ...
Page 378: ...Section 12 A D Converter Rev 6 00 Sep 12 2006 page 356 of 526 REJ09B0326 0600 ...
Page 446: ...Section 13 Electrical Characteristics Rev 6 00 Sep 12 2006 page 424 of 526 REJ09B0326 0600 ...