Renesas R5S72621 User Manual
Section 22 Renesas SPDIF Interface
R01UH0134EJ0400 Rev. 4.00
Page 1189 of 2108
Sep 24, 2014
SH7262 Group, SH7264 Group
22.10
Disabling the Module
22.10.1
Transmitter and Receiver Idle
The transmitter or receiver modules can be disabled by writing 0 to the idle bit in the control
register (TME for the transmitter and RME for the receiver). The idle state can be detected by
polling the idle bit in the status register (TIS and RIS).
register (TME for the transmitter and RME for the receiver). The idle state can be detected by
polling the idle bit in the status register (TIS and RIS).
22.11
Compressed Mode Data
Compressed mode data is defined in the IEC 61937 specification. This module only detects
compressed mode data. This is done by checking the parity flag (V flag) and bit 1 in the channel
status data. If both are one then the data is in compressed mode. This is indicated by the setting of
the CMD bit in the status register.
compressed mode data. This is done by checking the parity flag (V flag) and bit 1 in the channel
status data. If both are one then the data is in compressed mode. This is indicated by the setting of
the CMD bit in the status register.
Note: Only the receiver detects compressed mode data since the information is not relevant to
the transmitter.
22.12
References
IEC60958 Digital Audio Interface
IEC61937 Compressed Mode Digital Audio Interface