Section 4 Clock Pulse Generator (CPG)
Rev. 3.00 Sep. 27, 2007 Page 64 of 758
REJ09B0243-0300
4.4.2
Oscillation Stop Detection Control Register (OSCCR)
OSCCR is an 8-bit readable/writable register that has an oscillation stop detection flag and selects
flag status output to an external pin. OSCCR can be accessed only in bytes.
Bit:
Initial value:
R/W:
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
R
R
R
R
R
R
R
R/W
-
-
-
-
-
OSC
STOP
-
OSC
ERS
Bit Bit
Name
Initial
Value
R/W Description
7 to 3
All
0
R
Reserved
These bits are always read as 0. The write value should
always be 0.
2 OSCSTOP
0 R
Oscillation
Stop
Detection
Flag
[Setting conditions]
•
When a stop in the clock input is detected during
normal operation
•
When software standby mode is entered
[Clearing conditions]
•
By a power-on reset input through the
RES
pin
•
When software standby mode is canceled
1
0 R
Reserved
This bit is always read as 0. The write value should
always be 0.
0
OSCERS
0
R/W
Oscillation Stop Detection Flag Output Select
Selects whether to output the oscillation stop detection
flag signal through the
WDTOVF
pin.
0: Outputs only the WDT overflow signal through the
WDTOVF
pin
1: Outputs the WDT overflow signal and the oscillation
stop detection flag signal through the
WDTOVF
pin
Summary of Contents for SH7124 R5F7124
Page 2: ...Rev 3 00 Sep 27 2007 Page ii of xx ...
Page 8: ...Rev 3 00 Sep 27 2007 Page viii of xx ...
Page 36: ...Section 1 Overview Rev 3 00 Sep 27 2007 Page 16 of 758 REJ09B0243 0300 ...
Page 68: ...Section 2 CPU Rev 3 00 Sep 27 2007 Page 48 of 758 REJ09B0243 0300 ...
Page 108: ...Section 5 Exception Handling Rev 3 00 Sep 27 2007 Page 88 of 758 REJ09B0243 0300 ...
Page 166: ...Section 7 User Break Controller UBC Rev 3 00 Sep 27 2007 Page 146 of 758 REJ09B0243 0300 ...
Page 724: ...Section 20 List of Registers Rev 3 00 Sep 27 2007 Page 704 of 758 REJ09B0243 0300 ...
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