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Renesas H8S/2111B User Manual

Page 500

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Rev. 1.00, 05/04, page 466 of 544

Bit Bit

Name

Initial
Value R/W Description

6

LSON

0

R/W

Low-Speed On Flag

Specifies the operating mode to be entered after
executing the SLEEP instruction. This bit also controls
whether to shift to high-speed mode or subactive mode
when watch mode is cancelled.

When the SLEEP instruction is executed in high-speed
mode or medium-speed mode:

0: Shifts to sleep mode, software standby mode, or

watch mode

1: Shifts to watch mode or subactive mode

When the SLEEP instruction is executed in subactive
mode:

0: Shifts directly to watch mode or high-speed mode

1: Shifts to subsleep mode or watch mode

When watch mode is cancelled:

0: Shifts to high-speed mode

1: Shifts to subactive mode

5 NESEL

0 R/W

Noise Elimination Sampling Frequency Select

Selects the frequency by which the subclock (

φSUB)

input from the EXCL 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.

0: Sampling using

φ/32 clock

1: Sampling using

φ/4 clock

4 EXCLE

0

R/W

Subclock Input Enable

Enables/disables subclock input from the EXCL pin.

0: Disables subclock input from the EXCL pin

1: Enables subclock input from the EXCL pin

3

0 R/W

Reserved

An undefined value is read from this bit. This bit should
not be set to 1.

2 to 0

 All

0

R

Reserved

These bits are always read as 0 and cannot be
modified.

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