.external F_SACM_A1800_CH2_Initial
.external F_SACM_A1800_CH2_Play
.external F_SACM_A1800_CH2_Stop
.external F_SACM_A1800_CH2_Volume
.external F_SACM_A1800_CH2_Pause
.external F_SACM_A1800_CH2_Resume
.external F_SACM_A1800_CH2_Status
.external F_SACM_A1800_CH2_ServiceLoop
.external F_ISR_Service_SACM_A1800_CH2

.external F_Event_CH2_Initial
.external F_Event_CH2_ServiceLoop
.external F_IO_Event_Enable
.external F_IO_Event_Disable
.external F_ISR_Event_Service