pef20550 Infineon Technologies Corporation, pef20550 Datasheet - Page 59

• Manufacturer Part Number: pef20550
• Description: Extended Line Card Interface Controller Elic
• Manufacturer: Infineon Technologies Corporation

The status of the bit MODE:CFT (continuous frame transmission) defines whether a new
frame can be loaded as soon as the XFIFO is available or after the current transmission
was terminated.
Figure 33
XFIFO Loading, Continuous Frame Transmission Disabled (CFT = 0)
Figure 34
XFIFO Loading, Continuous Frame Transmission Enabled (CFT = 1)
When using the DMA-mode, prior to the data transfer the actual byte count to be
transmitted must be written to the registers XBCH, XBCL (transmit byte count high, low).
Semiconductor Group
Frame Preparation
Copy Data to Inaccessable
Frame Preparation
Copy Data to Inaccessable
Transmit Serial Data
Frame Transmission
Transmit Serial Data
Frame Transmission
XPR
XPR
XFIFO Part
XFIFO Part
Frame n
XPR
Frame n
XPR
(40 Bytes)
(40 Bytes)
Frame n
Frame n
XPR
59
Frame n+1
XPR
XPR
Frame n+1
Frame n+2
Frame n+1
(32 Bytes)
Functional Description
(32 Bytes)
Frame n+1
XPR
PEB 20550
PEF 20550
ITD05832
Frame n+2
XPR
ITD05831
01.96