2 POWER SUPPLY, RESET, AND CLOCKS
S1C17M12/M13 TECHNICAL MANUAL
Seiko Epson Corporation
2-15
(Rev. 1.2)
Each bit corresponds to the interrupt as follows:
CLGINTF.OSC3STAIF bit: OSC3 oscillation stabilization waiting completion interrupt
CLGINTF.IOSCSTAIF bit: IOSC oscillation stabilization waiting completion interrupt
Note: The CLGINTF.IOSCSTAIF bit is 0 after system reset is canceled, but IOSCCLK has already
been stabilized.
CLG Interrupt Enable Register
Register name
Bit
Bit name
Initial
Reset
R/W
Remarks
CLGINTE
15–8 –
0x00
–
R
–
7–3 –
0x00
–
R
2
OSC3STAIE
0
H0
R/W
1
–
0
–
R
0
IOSCSTAIE
0
H0
R/W
Bits 15–3, 1 Reserved
Bit 2
OSC3STAIE
Bit 0
IOSCSTAIE
These bits enable the CLG interrupts.
1 (R/W): Enable interrupts
0 (R/W): Disable interrupts
Each bit corresponds to the interrupt as follows:
CLGINTE.OSC3STAIE bit: OSC3 oscillation stabilization waiting completion interrupt
CLGINTE.IOSCSTAIE bit: IOSC oscillation stabilization waiting completion interrupt
CLG FOUT Control Register
Register name
Bit
Bit name
Initial
Reset
R/W
Remarks
CLGFOUT
15–8 –
0x00
–
R
–
7
–
0
–
R
6–4 FOUTDIV[2:0]
0x0
H0
R/W
3–2 FOUTSRC[1:0]
0x0
H0
R/W
1
–
0
–
R
0
FOUTEN
0
H0
R/W
Bits 15–7 Reserved
Bits 6–4
FOUTDIV[2:0]
These bits set the FOUT clock division ratio.
Bits 3–2
FOUTSRC[1:0]
These bits select the FOUT clock source.
Table 2.6.8 FOUT Clock Source and Division Ratio Settings
CLGFOUT.
FOUTDIV[2:0] bits
CLGFOUT.FOUTSRC[1:0] bits
0x0
0x1
0x2
0x3
IOSCCLK
Reserved
OSC3CLK
SYSCLK
0x7
1/128
–
1/128
Reserved
0x6
1/64
1/64
0x5
1/32
1/32
0x4
1/16
1/16
0x3
1/8
1/8
0x2
1/4
1/4
0x1
1/2
1/2
0x0
1/1
1/1
1/1
Note
: When the CLGFOUT.FOUTSRC[1:0] bits are set to 0x3, the FOUT output will be stopped in
SLEEP/HALT mode as SYSCLK is stopped.
Bit 1
Reserved