PSB 21373 H V1.1 Infineon Technologies, PSB 21373 H V1.1 Datasheet - Page 97
![no-image](/images/manufacturer_photos/0/3/327/infineon_technologies_sml.jpg)
PSB 21373 H V1.1
Manufacturer Part Number
PSB 21373 H V1.1
Description
IC SPEECH AND VOICE MQFP-44
Manufacturer
Infineon Technologies
Series
SCOUT™r
Datasheet
1.PSB_21373_H_V1.1.pdf
(242 pages)
Specifications of PSB 21373 H V1.1
Function
CODEC
Interface
IOM-2, SCI
Number Of Circuits
1
Voltage - Supply
5V
Current - Supply
97.5mA
Mounting Type
Surface Mount
Package / Case
44-BQFP
Includes
Activation and Deactivation, Channel Handler, DTMF / Tone / Ringing Generator, HDLC Controller, Speakerphone, Voice Monitoring
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power (watts)
-
Operating Temperature
-
Other names
PSB21373HV1.1XT
PSB21373HV11XT
SP000007602
PSB21373HV11XT
SP000007602
- Current page: 97 of 242
- Download datasheet (4Mb)
PSB 21373
3.3.1.2
Possible Error Conditions during Transmission of Frames
If the transmitter sees an empty FIFO, i.e. if the microcontroller does not react quickly
enough to an XPR interrupt, an XDU (transmit data underrun) interrupt will be raised. If
the HDLC channel becomes unavailable during transmission the transmitter tries to
repeat the current frame as specified in the LAPD protocol. This is impossible after the
first data block has been sent (16 or 32 bytes), in this case an XMR transmit message
repeat interrupt is set and the microcontroller has to send the whole frame again.
Both XMR and XDU interrupts cause a reset of the XFIFO. The XFIFO is locked while
an XMR or XDU interrupt is pending, i.e. all write actions of the microcontroller will be
ignored as long as the microcontroller has not read the ISTAH register with the set XDU,
XMR interrupts.
If the microcontroller writes more data than allowed (16 or 32 bytes), then the data in the
XFIFO will be corrupted and the STAR.XDOV bit is set. If this happens, the
microcontroller has to abort the transmission by CMDR.XRES and to restart.
Data Sheet
97
2002-05-13
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