HE83003 Datasheet, PDF (11/23 Pages) King blillion Electronics Co.,Ltd. – 8-BIT MICRO-CONTROLLER

King Billion Electronics Co., Ltd
駿億電子股份有限公司
VDD
HE83003
HE80000 SERIES
CPU ^VO(DAO)
bias &
filter
circuit
SPEAKER
The PWM output volume can be adjusted by command register PWMC[6..4]. The PWMC[6] and
PWMC[5] control 2 time driver, while PWMC [4] controls 1 time driver, thus it has maximum 5 levels of
driver output. The sound volume of PWM output can be controlled by these PWMC[6..4] bits. Please
note that this adjustment only apply to PWM. When the system enters into sleep mode or idle mode, it
will automatically disable all voice outputs by clearing VOC[6..0] to ”0000000”. To activate voice
output again when returning to normal mode, the VOC register needs to be set again.
PWMC[6..4]
000
001
010
011
100
101
110
111
Number of PWM Output Driver
off
1
2
3
2
3
4
5
September 8, 2004
11
V1.1
This specification is subject to change without notice. Please contact sales person for the latest version before use.