PSF21150 INFINEON [Infineon Technologies AG], PSF21150 Datasheet - Page 173

• Manufacturer Part Number: PSF21150
• Description: IPAC-X ISDN PC ADAPTER CIRCUIT
• Manufacturer: INFINEON [Infineon Technologies AG]

4.1.3
Value after reset: 10
ISTAD
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
Data Sheet
available and the frame is not yet complete
been transmitted
7
ISTAD - Interrupt Status Register D-Channel
RME
RPF
H
RFO
XPR
173
XMR
XDU
Detailed Register Description
0
0
0
PSB 21150
PSF 21150
2000-07-21
RD (20)