PEB3086 Infineon Technologies, PEB3086 Datasheet - Page 55

• Manufacturer Part Number: PEB3086
• Description: ISDN Subscriber Access Controller
• Manufacturer: Infineon Technologies

3.3.4
TE mode
In the state F7 (Activated) or if the internal layer-1 statemachine is disabled and XINF of
register TR_CMD is programmed to ’011’ the B1, B2, D and E bits are transferred
transparently from the S/T to the IOM-2 interface. In all other states ’1’s are transmitted
to the IOM-2 interface.
To transfer data transparently to the S/T interface any activation request C/I command
(AR8, AR10 or ARL) is additionally necessary or if the internal layer-1 statemachine is
disabled, bit TDDIS of register TR_CMD has additionally to be programmed to ’0’.
Figure 22
versa.
For the D channel the delay from the IOM-2 to the S/T interface is only valid if S/G
evaluation is disabled (MODED.DIM0=0). If S/G evaluation is enabled
(MODED.DIM2-0=0x1) the delay depends on the selected priority and the relation
between the echo bits on S and the D channel bits on the IOM-2, e.g. for priority 8 the
timing relation between the 8th D-bit on S bus and the D-channel on IOM-2.
Figure 22
Data Sheet
NT -> TE
TE -> NT
FSC
DU
DD
B1
B1
shows the data delay between the IOM-2 and the S/T interface and vice
Data Transfer and Delay between IOM-2 and S/T
F
B2 D
B2 D
F
Data Delay between IOM-2 and S/T Interface (TE mode only)
B1
B1
E
D
D
B2
E
B2
E
B1
B1
B2 D
D
B2 D
D
B1
B1
E
D
D
B2
B2
E
E
55
B1
B1
D
F
D
B2 D
F
B2 D
B1
B1
E
Description of Functional Blocks
D
D
B2
E
B2
E
B1
B1
B2 D
B2 D
D
D
B1
B1
E
D
D
B2
B2
E
PEB 3086
E
2003-01-30
ISAC-SX
line_iom_s.vsd
D
D