psf2115 ETC-unknow, psf2115 Datasheet - Page 177

• Manufacturer Part Number: psf2115
• Description: Isdn Adapter Circuit Ipac
• Manufacturer: ETC-unknow

Semiconductor Group
Back to Back Frames
If two or more frames should be transmitted in a high speed sequence without interframe
time fill, the transmission sequence according figure 82 has to be used.
This means that the closing flag will be immediately followed by an opening flag. The
IPAC receiver, however, is capable of receiving frames separated by only one (shared)
flag.
Figure 82
Continuous Frames Transmission (Flow Diagram)
CMDRB : XTF + XME
XFIFOB : Data
(<= 64 Bytes)
Last Frame
CMDRB : XTF
Pool Ready
Pool Ready
Transmit
Transmit
FRAME
START
END
END
?
?
?
?
Y
Y
Y
Y
177
ITD09649
XPR Interrupt or
XFW Bit in STARB Register = 1
CMDRB : XME
Operational Description
PSB 2115
PSF 2115
11.97