PSB21150HV14XP Infineon Technologies, PSB21150HV14XP Datasheet - Page 173
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PSB21150HV14XP
Manufacturer Part Number
PSB21150HV14XP
Description
Manufacturer
Infineon Technologies
Datasheet
1.PSB21150HV14XP.pdf
(270 pages)
Specifications of PSB21150HV14XP
Number Of Line Interfaces
1
Control Interface
HDLC
Lead Free Status / Rohs Status
Compliant
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RME ... Receive Message End
One complete frame of length less than or equal to the defined block size
(EXMD1.RFBS) or the last part of a frame of length greater than the defined block size
has been received. The contents are available in the RFIFOD. The message length and
additional information may be obtained from RBCHD and RBCLD and the RSTAD
register.
RPF ... Receive Pool Full
A data block of a frame longer than the defined block size (EXMD1.RFBS) has been
received and is available in the RFIFOD. The frame is not yet complete.
RFO ... Receive Frame Overflow
The received data of a frame could not be stored, because the RFIFOD is occupied. The
whole message is lost.
This interrupt can be used for statistical purposes and indicates that the microcontroller
does not respond quickly enough to an RPF or RME interrupt (ISTAD).
XPR ... Transmit Pool Ready
A data block of up to the defined block size 16 or 32 (EXMD1.XFBS) can be written to
the XFIFOD.
An XPR interrupt will be generated in the following cases:
• after an XTF or XME command as soon as the 16 or 32 bytes in the XFIFO are
• after an XTF together with an XME command is issued, when the whole frame has
• after a reset of the transmitter (XRES)
• after a device reset
XMR ... Transmit Message Repeat
The transmission of the last frame has to be repeated because a collision on the S bus
has been detected after the 16
If an XMR interrupt occurs the transmit FIFO is locked until the XMR interrupt is read by
the host (interrupt cannot be read if masked in MASKD).
XDU ... Transmit Data Underrun
The current transmission of a frame is aborted by transmitting seven ’1’s because the
XFIFOD holds no further data. This interrupt occurs whenever the microcontroller has
failed to respond to an XPR interrupt (ISTAD register) quickly enough, after having
initiated a transmission and the message to be transmitted is not yet complete.
Data Sheet
available and the frame is not yet complete
been transmitted
th
/32
nd
data byte of a transmit frame.
173
Detailed Register Description
PSB/PSF 21150
2003-01-30
IPAC-X
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