Operational Description
Table 17
List of Commands (CMDR (21) Register)
Command
Mnemonic
HEX Bit 7…0
Meaning
RMC
80
40
1000 0000 Receive Message Complete. Acknowledges a block
(RPF) or a frame (RME) stored in the RFIFO.
RRES
0100 0000 Reset HDLC Receiver. The RFIFO is cleared. The
transmit and receive counters (V(S), V(R)) are reset
(auto mode).
RNR
STI
20
0010 0000 Receiver Not Ready (auto mode). An I- or S-frame will be
acknowledged with RNR frame.
10
0A
0001 0000 Start Timer.
XTFC
(XTF+XME)
0000 1010 Transmit Transparent Frame and Close. Enables the
"transparent" transmission of the block entered last in the
XFIFO. The frame is closed with a CRC and a flag.
XIFC
(XIF+XME)
06
08
04
01
0000 0110 Transmit I-frame and Close. Enables the "auto mode"
transmission of the block entered last in the XFIFO. The
frame is closed with a CRC and a flag.
XTF
XIF
0000 1000 Transmit Transparent Frame. Enables the "transparent"
transmission of the block entered last in the XFIFO
without closing the frame.
0000 0100 Transmit I-frame. Enables the "auto mode" transmission
of the block entered last in the XFIFO without closing the
frame.
XRES
0000 0001 Reset HDLC Transmitter. The XFIFO is cleared.
A frame currently in transmission will be aborted and
closed by an abort sequence (7 "1").
Semiconductor Group
186
INFINEON [ Infineon ]
