717
Bit 3—Frequency Multiplication Factor Switching Mode Select (STCS): Selects the operation
when the PLL circuit frequency multiplication factor is changed.
Bit 3
STCS
Description
0
Specified multiplication factor is valid after recovery from software standby mode,
watch mode, or subactive mode
(Initial value)
1
Specified multiplication factor is valid immediately after STC bits are rewritten
Bits 2 to 0—System Clock Select 2 to 0 (SCK2 to SCK0): These bits select the bus master
clock.
Bit 2
Bit 1
Bit 0
SCK2
SCK1
SCK0
Description
0
0
0
Bus master is in high-speed mode
(Initial value)
1
Medium-speed clock is ø/2
1
0
Medium-speed clock is ø/4
1
Medium-speed clock is ø/8
1
0
0
Medium-speed clock is ø/16
1
Medium-speed clock is ø/32
1
—
—
21.2.2
Low-Power Control Register (LPWRCR)
7
DTON
0
R/W
6
LSON
0
R/W
5
NESEL
0
R/W
4
SUBSTP
0
R/W
3
RFCUT
0
R/W
0
STC0
0
R/W
2
—
0
R/W
1
STC1
0
R/W
Bit
Initial value
Read/Write
LPWRCR is an 8-bit readable/writable register that performs power-down mode control. The
following pertains to bits 1 and 0. For details of the other bits, see section 22.2.3, Low-Power
Control Register (LPWRCR). LPWRCR is initialized to H'00 by a reset and in hardware standby
mode. It is not initialized in software standby mode.
Summary of Contents for H8S/2645
Page 4: ......
Page 16: ......
Page 58: ...26 ...
Page 110: ...78 ...
Page 120: ...88 ...
Page 132: ...100 ...
Page 160: ...128 ...
Page 172: ...140 ...
Page 418: ...386 ...
Page 444: ...412 ...
Page 530: ...498 ...
Page 562: ...530 ...
Page 642: ...610 ...
Page 662: ...630 ...
Page 688: ...656 ...
Page 756: ...724 ...
Page 784: ...752 ...
Page 812: ...780 ...
Page 837: ...805 A 2 Instruction Codes Table A 2 shows the instruction codes ...
Page 1152: ...1120 ...