peb20560 Infineon Technologies Corporation, peb20560 Datasheet - Page 338

• Manufacturer Part Number: peb20560
• Description: Dsp Oriented Pbx Controller Doc
• Manufacturer: Infineon Technologies Corporation

Note: MODE:CFT must be set to ‘0’ when using cyclic transmission.
XPD/XTF
XDD
XME
Note: When using the DMA-mode XME must not be used.
XRES
Semiconductor Group
Transmit Prepared Data/Transmit Transparent Frame.
• Auto-mode: XPD
• Non-auto-mode, transparent mode 0,1: XTF
• Extended transparent mode 0,1: XTF
Transmit Direct Data (auto-mode only!).
Prepares the transmission of an I-frame (“direct data”) in auto-mode. The
actual transmission starts, when the SACCO receives a RR-frame with
poll-bit set. Upon the reception of an I-frame with poll-bit set, an I-response
is issued.
Transmit Message End .
A ‘1’ indicate that the data block written last to the XFIFO completes the
actual frame. The SACCO can terminate the transmission operation
properly by appending the CRC and the closing flag sequence to the data.
XME is used only in combination with XPD/XTF or XDD.
Transmit Reset.
The contents of the XFIFO is deleted and IDLE is transmitted. This
command can be used by the CPU to abort a frame currently in
transmission. After setting XRES a XPR-interrupt is generated in every
case.
Prepares the transmission of an I-frame (“prepared data”) in auto-mode.
The actual transmission starts, when the SACCO receives an I-frame with
poll-bit set and AxH as the first data byte (PBC-command “transmit
prepared data”). Upon the reception of a different poll frame a response
is generated automatically (RR-poll ⇒ RR-response, I-poll with first byte
not AxH ⇒ I-response).
The transmission of the XFIFO contents is started, an opening flag
sequence is automatically added.
The transmission of the XFIFO contents is started, no opening flag
sequence is added.
5-95
Description of Registers
PEB 20560
2003-08