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Section 8 I/O Ports
Rev. 6.00 Sep 12, 2006 page 193 of 526
REJ09B0326-0600
Port Data Register 7 (PDR7)
Bit
7 6 5 4 3 2 1 0
P7
7
P7
6
P7
5
P7
4
P7
3
Initial
value 0 0 0 0 0 0
*
0
*
0
*
Read/Write
R/W R/W R/W R/W R/W
Note:
*
Bits 2 to 0 are reserved; they are always read as 0 and cannot be modified.
PDR7 is an 8-bit register that stores data for port 7 pins P7
7
to P7
3
. If port 7 is read while PCR7
bits are set to 1, the values stored in PDR7 are read, regardless of the actual pin states. If port 7 is
read while PCR7 bits are cleared to 0, the pin states are read.
Upon reset, PDR7 is initialized to H'00.
Port Control Register 7 (PCR7)
Bit
7 6 5 4 3 2 1 0
PCR7
7
PCR7
6
PCR7
5
PCR7
4
PCR7
3
Initial
value 0 0 0 0 0 0 0 0
Read/Write W W W W W
PCR7 is an 8-bit register for controlling whether each of the port 7 pins P7
7
to P7
3
functions as an
input pin or output pin. Setting a PCR7 bit to 1 makes the corresponding pin an output pin, while
clearing the bit to 0 makes the pin an input pin.
Upon reset, PCR7 is initialized to H'00.
PCR7 is a write-only register, which always reads as all 1s.
Содержание F-ZTAT H8/3642A Series
Страница 6: ...Rev 6 00 Sep 12 2006 page iv of xx ...
Страница 8: ...Rev 6 00 Sep 12 2006 page vi of xx ...
Страница 21: ...Rev 6 00 Sep 12 2006 page xix of xx Appendix E Product Code Lineup 522 Appendix F Package Dimensions 524 ...
Страница 22: ...Rev 6 00 Sep 12 2006 page xx of xx ...
Страница 124: ...Section 5 Power Down Modes Rev 6 00 Sep 12 2006 page 102 of 526 REJ09B0326 0600 ...
Страница 188: ...Section 6 ROM Rev 6 00 Sep 12 2006 page 166 of 526 REJ09B0326 0600 ...
Страница 190: ...Section 7 RAM Rev 6 00 Sep 12 2006 page 168 of 526 REJ09B0326 0600 ...
Страница 298: ...Section 9 Timers Rev 6 00 Sep 12 2006 page 276 of 526 REJ09B0326 0600 ...
Страница 378: ...Section 12 A D Converter Rev 6 00 Sep 12 2006 page 356 of 526 REJ09B0326 0600 ...
Страница 446: ...Section 13 Electrical Characteristics Rev 6 00 Sep 12 2006 page 424 of 526 REJ09B0326 0600 ...