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3.4.2
SFRs
SYSCR0
Bit symbol
(00E0H)
Read/Write
After reset
Always
Function
write "1".
SYSCR1
Bit symbol
(00E1H)
Read/Write
After reset
Function
SYSCR2
Bit symbol
(00E2H)
Read/Write
After reset
Function
7
6
5
−
−
−
1
0
1
Always
Always
write "0".
write "1".
7
6
5
7
6
5
−
WUPTM1
R/W
R/W
0
1
Always
Warm-up timer
write "0".
00: Reserved
8
01: 2
inputted frequency
14
10: 2
inputted frequency
16
11: 2
inputted frequency
Figure 3.4.3 SFR for System Clock
91C829-14
4
3
−
−
R/W
0
0
Always
Always
Warm-up
timer
write "0".
write "0".
Write 0:
Don't care
Write 1:
Start timer
Read 0:
End
warm-up
Read 1:
Do not end
warm-up
4
3
−
0
Always
Select gear value of high frequency (fc)
write "0".
000: fc
001: fc/2
010: fc/4
011: fc/8
100: fc/16
101: (Reserved)
110: (Reserved)
111: (Reserved)
4
3
WUPTM0
HALTM1
R/W
R/W
0
1
HALT mode
00: Reserved
01: STOP mode
10: IDLE1 mode
11: IDLE2 mode
TMP91C829
2
1
WUEF
PRCK1
PRCK0
0
0
Select prescaler clock
00: f
FPH
01: Reserved
10: fc/16
11: Reserved
2
1
GEAR2
GEAR1
GEAR0
R/W
0
0
2
1
HALTM0
DRVE
R/W
1
1: Drive the
pin during
STOP
mode
2006-03-15
0
0
0
0
0
R/W
0
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