Section 26 Power-Down Modes
Rev. 1.00 Apr. 28, 2008 Page 844 of 994
REJ09B0452-0100
26.1.2
Low-Power Control Register (LPWRCR)
LPWRCR controls power-down modes.
Bit Bit
Name
Initial
Value R/W
Description
7
DTON
0
R/W
Direct Transfer On Flag
The initial value should not be changed.
6
LSON
0
R/W
Low-Speed On Flag
The initial value should not be changed.
5 NESEL
0
R/W
Noise
Elimination Sampling Frequency Select
Selects the frequency by which the subclock (
φ
SUB)
input from the EXCL or ExEXCL pin is sampled using
the clock (
φ
) generated by the system clock pulse
generator. Clear this bit to 0 when
φ
is 5 MHz or more.
The initial value should not be changed.
0: Sampling using
φ
/32 clock
1: Sampling using
φ
/4 clock (not allowed)
4
EXCLE
0
R/W
Subclock Input Enable
Enables or disables subclock input from the EXCL or
ExEXCL pin.
0: Disables subclock input from the EXCL or ExEXCL
pin
1: Enables subclock input from the EXCL or ExEXCL
pin
3 to 0
All
0
R/W
Reserved
The initial value should not be changed.
Summary of Contents for H8S/2100 Series
Page 2: ...Rev 1 00 Apr 28 2008 Page ii of xxvi...
Page 54: ...Section 1 Overview Rev 1 00 Apr 28 2008 Page 28 of 994 REJ09B0452 0100...
Page 92: ...Section 2 CPU Rev 1 00 Apr 28 2008 Page 66 of 994 REJ09B0452 0100...
Page 158: ...Section 5 Interrupt Controller Rev 1 00 Apr 28 2008 Page 132 of 994 REJ09B0452 0100...
Page 244: ...Section 8 8 Bit PWM Timer PWMU Rev 1 00 Apr 28 2008 Page 218 of 994 REJ09B0452 0100...
Page 330: ...Section 10 16 Bit Timer Pulse Unit TPU Rev 1 00 Apr 28 2008 Page 304 of 994 REJ09B0452 0100...
Page 416: ...Section 13 8 Bit Timer TMR Rev 1 00 Apr 28 2008 Page 390 of 994 REJ09B0452 0100...
Page 612: ...Section 18 I 2 C Bus Interface IIC Rev 1 00 Apr 28 2008 Page 586 of 994 REJ09B0452 0100...
Page 706: ...Section 20 LPC Interface LPC Rev 1 00 Apr 28 2008 Page 680 of 994 REJ09B0452 0100...
Page 752: ...Section 21 FSI Interface Rev 1 00 Apr 28 2008 Page 726 of 994 REJ09B0452 0100...
Page 774: ...Section 23 RAM Rev 1 00 Apr 28 2008 Page 748 of 994 REJ09B0452 0100...
Page 1008: ...Section 28 Electrical Characteristics Rev 1 00 Apr 28 2008 Page 982 of 994 REJ09B0452 0100...
Page 1020: ...Rev 1 00 Apr 28 2008 Page 994 of 994 REJ09B0452 0100...
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Page 1024: ...H8S 2117R Group Hardware Manual...