67
MC95FG308 / MC95FG208
ABOV Semiconductor Co., Ltd.
11.1.3 Register Map
Name
Address
Dir
Default
Description
SCCR
8AH
R/W
04H
System and Clock Control Register
Table 11.1
Register Map
11.1.4 Clock Generator Register Description
The Clock Generation Register uses clock control for system operation. The clock generation consists of System and
Clock register.
11.1.5 Register Description for Clock Generator
SCCR (System and Clock Control Register) : 8AH
7
6
5
4
3
2
1
0
STOP1
DIV1
DIV0
CBYS
ISTOP
XSTOP
CS1
CS0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial value : 04H
STOP1
Control the STOP Mode
NOTE)
when PCON=0x03, It is applied. But when PCON=0x01,
don’t set this bit.
0
STOP2 Mode (at PCON=0x03) (default)
1
STOP1 Mode (at PCON=0x03)
DIV[1:0]
When using fINTRC as system clock, determine division rate.
NOTE)
when using fINTRC as system clock, only division rate come
into effect.
NOTE)
To change by software, CBYS set to ‘1’
DIV1
DIV0
description
0
0
fINTRC/1 (8MHz)
0
1
fINTRC/2 (4MHz)
1
0
fINTRC/4 (2MHz)
1
1
fINTRC/8 (1MHz)
CBYS
Control the scheme of clock change. If this bit set to ‘0’, clock
change is controlled by hardware. But if this set to ‘1’, clock change
is controlled by software. Ex) when setting CS[1:0], if CBYS bit set
to ‘0’, it is not changed right now, CPU goes to STOP mode and
then when wake-up, it applies to clock change.
NOTE)
when clear this bit, keep other bits in SCCR.
0
Clock changed by hardware during stop mode (default)
1
Clock changed by software
ISTOP
Control the operation of INT-RC Oscillation
NOTE)
when CBYS=’1’, It is applied
0
RC-Oscillation enable (default)
1
RC-Oscillation disable
XSTOP
Control the operation of X-Tal Oscillation
NOTE1)
when CBYS=’1’, It is applied
NOTE2)
if XINENA bit in FUSE_CONF to ‘0’, XSTOP is fixed to ‘1’
0
X-Tal Oscillation enable
1
X-Tal Oscillation disable (default)
CS[1:0]
Determine System Clock
NOTE)
by CBYS bit, reflection point is decided
CS1
CS0
Description
Содержание MC95FG208 Series
Страница 14: ...14 MC95FG308 MC95FG208 ABOV Semiconductor Co Ltd 4 Package Diagram Figure 4 1 32 Pin SOP Package...
Страница 15: ...15 MC95FG308 MC95FG208 ABOV Semiconductor Co Ltd Figure 4 2 32 Pin QFN Package...
Страница 16: ...16 MC95FG308 MC95FG208 ABOV Semiconductor Co Ltd Figure 4 3 32 Pin LQFP Package...
Страница 17: ...17 MC95FG308 MC95FG208 ABOV Semiconductor Co Ltd Figure 4 4 28 Pin SOP Package...
Страница 18: ...18 MC95FG308 MC95FG208 ABOV Semiconductor Co Ltd Figure 4 5 28 Pin SOP Package continue...
Страница 19: ...19 MC95FG308 MC95FG208 ABOV Semiconductor Co Ltd Figure 4 6 28 Pin SOP Package...
Страница 20: ...20 MC95FG308 MC95FG208 ABOV Semiconductor Co Ltd Figure 4 7 28 Pin TSSOP Package...
Страница 21: ...21 MC95FG308 MC95FG208 ABOV Semiconductor Co Ltd Figure 4 8 20 Pin SOP Package...
Страница 22: ...22 MC95FG308 MC95FG208 ABOV Semiconductor Co Ltd Figure 4 9 20 Pin TSSOP Package...
Страница 23: ...23 MC95FG308 MC95FG208 ABOV Semiconductor Co Ltd Figure 4 10 16 Pin SOP Package...
Страница 24: ...24 MC95FG308 MC95FG208 ABOV Semiconductor Co Ltd Figure 4 11 16 Pin TSSOP Package...