PSB7238 SIEMENS [Siemens Semiconductor Group], PSB7238 Datasheet - Page 162

• Manufacturer Part Number: PSB7238
• Description: Joint Audio Decoder-Encoder - Multimode
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Semiconductor Group
This procedure is (nearly) identical with the interrupt handshake when in IOM/Host mode
(see Section 6.2.3.2) and the following steps are perfomed:
The JADE writes one frame of encoded audio data into the mailbox (most significant byte
first).
7. The JADE generates a “VocoderFinished” interrupt at INT line to the host by writing a
8. The host reads the compressed audio frame from the mailbox using the procedure
9. The host writes the compressed audio frame for the decoder into the mailbox using
10.The host generates an interrupt to the JADE by writing value 24
11.The JADE reads the compressed audio data from the mailbox and acknowledges the
value C0
of this interrupt is each time toggling between C0
host can consider a new “VocoderFinished”. For an interrupt driven host one should
just connect both numbers to the same interrupt service routine.
described in Section 3.3.2.2 and may reset the INDB bit. The reset of the INDB bit is
not mandatory and may be skipped.
the procedure described in Section 3.3.2.2.
status register at address 50
reception by resetting the INHB bit.
H
or 80
H
(toggling) into IND interrupt status register at address 58
H
.
162
H
and 80
H
to ensure that a polling
Data Sheet 1998-07-01
Firmware Features
H
into INH interrupt
H
PSB 7238
. The value