PEB22554 SIEMENS [Siemens Semiconductor Group], PEB22554 Datasheet - Page 333

• Manufacturer Part Number: PEB22554
• Description: ICs for Communications
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Global Port Configuration 1 (Read/Write)
Value after RESET: 00
GPC1
SMM …
Semiconductor Group
7
SMM
CSFP1
System Interface Multiplex Mode
Setting this bit enables a single rail data stream of 16.384 / 8.192 /
12.352 or 6.176 MBit/s containg all four T1 frames. The receive
system interface for all four channels is running with the clock
provided on SCLKR1 and the frame sync pulse provided on SYPR1.
The transmit system interface is running with SCLKX1 and SYPX1.
Data will be transmitted / accepted in a byte or bit interleaved format.
Bit interleaving is valid with the 16.384 / 8.192 / 12.352 or 6.176 MHz
clocking rates. However byte interleaving is only applicable with the
16.384 or 8.192 MHz clock. In the system interface multiplex mode
the following pin configuration has to be fulfilled and must be
identically for all for 4 channels:
- SYPR1 has to be provided on pin RPA1
- SYPX1 has to be provided on pin XPA1 or
- XMFS has to be provided on pin XPB1
- XSIG has to be provided on pin XPC1
- RSIG will be output on pin RPB1
Each of the four channels have to be configured equally:
- clocking rate : 16.384 / 8.192 / 12.352 MHz or 6.176 MHz
SIC1.SSC1/0 and SIC2.SSC2
- data rate : 16.384 / 8.192 / 12.352MBit/s or 6.176 MBit/s,
SIC1.SSD1, FMR1.SSD0
- time-slot offset programming : RC1/0 , XC1/0
- receive buffer size : SIC1.RBS1/0 = 00 (2 frames)
e.g. : system clock rate = 8.192 MHz : SIC1.SSC1/0 = 10 and system
data rate = 8.192 MBit/s : SIC1.SSD1 = 1 , FMR1.SSD0 = 0
The multiplexed data stream is internal logically ored. Therefore the
selection of the active channel phase have to be configured different
for each single channel FALC(1-4). Programming is done with
SIC2.SICS2-0.
for FALC1: SIC2.SICS2-0 = 000, selects the first channel phase
for FALC2: SIC2.SICS2-0 = 001, selects the second channel phase
H
CSFP0
333
FSS1
FSS0
Operational Description T1 / J1
R1S1
0
R1S0
PEB 22554
(85)
09.98