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Appendix B Internal I/O Registers
Rev. 6.00 Sep 12, 2006 page 482 of 526
REJ09B0326-0600
PUCR5—Port pull-up control register 5
H'FFEF
I/O ports
Bit
Initial value
Read/Write
7
PUCR5
0
R/W
6
PUCR5
0
R/W
5
PUCR5
0
R/W
4
PUCR5
0
R/W
3
PUCR5
0
R/W
0
PUCR5
0
R/W
2
PUCR5
0
R/W
1
PUCR5
0
R/W
3
0
2
1
4
5
6
7
SYSCR1—System control register 1
H'FFF0
System control
Bit
Initial value
Read/Write
7
SSBY
0
R/W
6
STS2
0
R/W
5
STS1
0
R/W
3
LSON
0
R/W
0
MA0
1
R/W
2
—
1
—
1
MA1
1
R/W
4
STS0
0
R/W
Software standby
0 • When a SLEEP instruction is executed in active mode, a transition is
made to sleep mode
1
Standby timer select 2 to 0
0
Wait time = 8,192 states
Wait time = 16,384 states
0 0
1
Wait time = 32,768 states
Wait time = 65,536 states
1 0
1
Active (medium-speed)
mode clock select
φ
/16
φ
/32
0
1
0
0
1
1
φ
/64
φ
/128
1
*
Wait time = 131,072 states
Low speed on flag
0
The CPU operates on the system clock (
φ
)
1
The CPU operates on the subclock (
φ
)
SUB
*
• When a SLEEP instruction is executed in subactive mode, a transition
is made to subsleep mode
• When a SLEEP instruction is executed in active mode, a transition is
made to standby mode or watch mode
• When a SLEEP instruction is executed in subactive mode, a transition
is made to watch mode
Don’t care
*
osc
osc
osc
osc
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 ...