PXB4219 Datasheet, PDF (178/290 Pages) Infineon Technologies AG – IWE8 Interworking Element for 8 E1/T1 Lines

PXB4219 / PXB4220 / PXB4221
Register Description
7.24
Operation Mode Register (opmo)
Read/write Address 0001E_H
Reset value 1100_H
15
Not used
7
bufthr0 tfpp
symn rts_gen rts_eval
rfpp
ftri
frri
8
bufthr[3:1]
0
om[1:0]
cbb
symn
rts_gen
rts_eval
bufthr
tfpp
rfpp
SYMn mode
This bit is relevant only in SYM2 and SYM8
0 = FRMFB[0] is used for frame and multiframe synchronization in
receive and transmit direction of all ports. FRMFB[1:7] are
unused
1 = FRMFB[N] is used for frame and multiframe synchronization in
receive and transmit direction of corresponding ports
RTS generation
0 = Pin SDI is used for RTS
1 = RTS data are generated by ICRC
RTS evaluation
0 = Pins FTCKO are used as transmit clock (FTCKO[0:7] are input
pins)
1 = Clock of ICRC is used as transmit clock and is also switched to
FTCKO pins (FTCKO[0:7] are output pins)
Buffer threshold
Determines the threshold for the ATM Transmit Buffer. If the buffer level
remains under the threshold the signal ATBTC will be activated.
Transmit frame pulse polarity
valid for GIM
0 = FTMFS is active low
1 = FTMFS is active high
Receive frame pulse polarity
valid for GIM, SYM8 and SYM2
0 = FRMFB is active low
Data Sheet
178
2002-05-06