PXB4219E Datasheet, PDF (179/290 Pages) Infineon Technologies AG – Interworking Element for 8 E1/T1 Lines

IWE8, V3.4
PXB 4219E, PXB 4220E, PXB 4221E
Register Description
1 = FRMFB is active high
ftri
Framer transmit rising edge
valid for GIM
0 = FTDAT outputs are clocked with the falling edge of FTCKO
1 = FTDAT outputs are clocked with the rising edge of FTCKO
frri
Framer receive rising edge
valid for GIM:
0 = FRDAT inputs are sampled with the falling edge of FRCLK
1 = FRDAT inputs are sampled with the rising edge of FRCLK
valid for SYM2:
0 = FRDAT inputs are sampled with the falling edge of RFCLK
FTDAT outputs are clocked with the rising edge of RFCLK
1 = FRDAT inputs are sampled with the rising edge of RFCLK
FTDAT outputs are clocked with the falling edge of RFCLK
om
Operation Mode
00 =
01 =
FAM: FALC mode
FTCKO and FRCLK running at 8.192 MHz
GIM: Generic Interface mode¹⁾
FTCKO and FRCLK running at 2.048 (E1) or 1.544 (T1) MHz
10 = SYM8: E1 synchronous mode (RFCLK = 8.192 MHz)
11 = SYM2: E1 synchronous mode (RFCLK = 2.048 MHz)
cbb
Clock Boost Bypass
0 = Normal operation: the external clock at RFCLK in internally
doubled to serve as reference clock for the internal DPLL
1 = Clock boost function bypassed
1) _{Make sure that no clocks are applied to the transmitter when switching to GIM.}
Data Sheet
179
2003-01-20