7 OSCILLATOR CIRCUIT (OSC)
S1C17001 TECHNICAL MANUAL
EPSON
65
0x5060: Clock Source Select Register (OSC_SRC)
Register name Address
Bit
Name
Function
Setting
Init. R/W
Remarks
Clock Source
Select Register
(OSC_SRC)
0x5060
(8 bits)
D7–1
–
reserved
–
–
–
0 when being read.
D0
CLKSRC
System clock source select
1 OSC1
0 OSC3
0
R/W
D[7:1] Reserved
D0
CLKSRC: System Clock Source Select Bit
Selects the system clock source.
1
(R/W):
OSC1
0 (R/W): OSC3 (default)
OSC3 is selected for normal (high-speed) operations. If the OSC3 clock is not required, OSC1 can be
set as the system clock and OSC3 stopped to reduce power consumption.
Note: If the system clock is switched from OSC3 to OSC1 immediately after starting OSC1 oscilla-
tion, the system clock will stop until the OSC1 clock starts up (for the OSC1 clock 256-cycle
period).
Summary of Contents for S1C17001
Page 1: ...Technical Manual S1C17001 CMOS 16 BIT SINGLE CHIP MICROCONTROLLER ...
Page 33: ...4 POWER SUPPLY VOLTAGE 24 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Page 63: ...6 INITERRUPT CONTROLLER 54 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Page 87: ...8 CLOCK GENERATOR CLG 78 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Page 91: ...9 PRESCALER PSC 82 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Page 133: ...11 16 BIT TIMER T16 124 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Page 211: ...16 STOPWATCH TIMER SWT 202 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Page 219: ...17 WATCHDOG TIMER WDT 210 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Page 241: ...18 UART 232 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Page 277: ...20 I2 C 268 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Page 313: ...25 PACKAGE 304 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...