
21-22
Seiko Epson Corporation
S1C31D50 TECHNICAL MANUAL
(Rev. 1.00)
Mute & Release Mute
Figure 21.4.15.3 shows Sound Mute-Release Mute Flow.
Figure 21.4.15.3 Sound Mute-Release Mute Flow
“Mute”
co
m
m
and
check STATE_x = "sp_state_mute", if necessary
Set Sound Play COMMAND
-
COMMAND_x:
“
MUTE_xxx
in Sound Play Function Registers(See Table 21.4.14.1)
Set HWPCMDTRG.HWP0TRG
Cortex Set HW Processor
Wait HWPINTF.HWP0IF = 1
HW Processor interrupts to cortex
Wait STATE_x = "sp_state_play"
Wait STATUS.READY = sp_status_ready
“Rel
eas
e
Mute”
co
m
m
and
check STATE_x = "sp_state_play", if necessary
Set Sound Play COMMAND
-
COMMAND_x:
“
Release_Mute
”
in Sound Play Function Registers(See Table 21.4.14.1)
Set HWPCMDTRG.HWP0TRG
Cortex Set HW Processor
Wait HWPINTF.HWP0IF = 1
HW Processor interrupts to cortex
Wait STATE_x = "sp_state_mute"
Wait STATUS.READY = sp_status_ready
Содержание S1C31D50
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