USBB13AP77016-XXX-B06 NEC Electronics, USBB13AP77016-XXX-B06 Datasheet - Page 26

• Manufacturer Part Number: USBB13AP77016-XXX-B06
• Description: DSP middleware(AMR voice CODEC)
• Manufacturer: NEC Electronics

2.2.10 amr_TX_to_RX function
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The amr_TX_to_RX function converts a transmit frame type (TX_TYPE) to a receive frame type (RX_TYPE).
[Classification]
[Function name]
[Summary of function] Converts a transmit frame type to a receive frame type.
[Format]
[Argument]
[Return value]
[Registers used]
[Hardware resources] Maximum stack level:
Remark Table 2-5 shows the receive frame type corresponding to each transmit frame type. The values in
parentheses are the values of each transmit/receive frame type. If any other transmit frame type is
specified, 0xFFFF is returned.
Frame type conversion function
amr_TX_to_RX
call amr_TX_to_RX
R1, R2, R3
Maximum loop stack level:
Maximum number of repetitions:
Maximum number of cycles:
TX_SPEECH_GOOD (= 0)
TX_SID_FIRST (= 1)
TX_SID_UPDATE (= 2)
TX_NO_DATA (= 3)
TX_SPEECH_DEGRADE (= 4)
TX_SPEECH_BAD (= 5)
TX_SID_BAD (= 6)
TX_ONSET (= 7)
Register
Register
Type
Type
Transmit Frame Type
Table 2-5. Transmit/Receive Frame Type
CHAPTER 2 LIBRARY SPECIFICATIONS
Return Value
Argument
User’s Manual U15165EJ3V0UM
R1L
R1L
Transmit frame type (TX_TYPE)
Receive frame type (RX_TYPE)
RX_SPEECH_GOOD (= 0)
RX_SID_FIRST (= 4)
RX_SID_UPDATE (= 5)
RX_SID_NO_DATA (= 7)
RX_SPEECH_DEGRADE (= 1)
RX_SPEECH_BAD (= 3)
RX_SID_BAD (= 6)
RX_ONSET (= 2)
30
0
0
0
Receive Frame Type
Description
Description