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Section 8 I/O Ports
Rev. 6.00 Sep 12, 2006 page 182 of 526
REJ09B0326-0600
PMR3 is an 8-bit read/write register, controlling the selection of pin functions for port 3 pins.
Upon reset, PMR3 is initialized to H'00.
Bits 7 to 3
Reserved Bits:
Bits 7 to 3 are reserved: they are always read as 0 and cannot be
modified.
Bit 2
P3
2
/SO
1
Pin Function Switch (SO1):
This bit selects whether pin P3
2
/SO
1
is used as P3
2
or as SO
1
.
Bit 2: SO1
Description
0
Functions as P3
2
I/O pin
(initial value)
1
Functions as SO
1
output pin
Bit 1
P3
1
/SI
1
Pin Function Switch (SI1):
This bit selects whether pin P3
1
/SI
1
is used as P3
1
or
as SI
1
.
Bit 1: SI1
Description
0
Functions as P3
1
I/O pin
(initial value)
1
Functions as SI
1
input pin
Bit 0
P3
0
/SCK
1
Pin Function Switch (SCK1):
This bit selects whether pin P3
0
/SCK
1
is used
as P3
0
or as SCK
1
.
Bit 0: SCK1
Description
0
Functions as P3
0
I/O pin
(initial value)
1
Functions as SCK
1
I/O pin
Port Mode Register 7 (PMR7)
Bit
7 6 5 4 3 2 1 0
TXD
POF1
Initial
value 1 1 1 1 1 0 0 0
Read/Write
R/W
R/W
PMR7 is an 8-bit read/write register that turns the PMOS transistors of pins and P3
2
/SO
1
on and
off.
Upon reset, PMR7 is initialized to H'F8.
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 ...