PEB 3081 H V1.4 Infineon Technologies, PEB 3081 H V1.4 Datasheet - Page 87

• Manufacturer Part Number: PEB 3081 H V1.4
• Description: IC S-BUS INTERFACE EXT MQFP44
• Manufacturer: Infineon Technologies

Specifications of PEB 3081 H V1.4

• Function: S / T Bus Interface Transceiver
• Interface: IOM-2, ISDN, SCI
• Number Of Circuits: 1
• Voltage - Supply: 3.3V
• Current - Supply: 30mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 64-QFP
• Includes: D-Channel Access Control, Monitor Channel Handler
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -
• Other names: PEB3081HV1.4XT; PEB3081HV14XP; SP000007583; SP000007584

SBCX-X
PEB 3081
Description of Functional Blocks
Figure 46
shows the timing of looping TSa from DU to DD (a = 0...31) via CDAxy
register. TSa is read in the CDAxy register from DU and is written one frame later on DD.
.
a = 0...31
FSC
DU
TSa
TSa
CDAxy
*)
µC
DD
TSa
TSa
*) if access by the µC is required
Figure 46
Data Access when Looping TSa from DU to DD
Figure 47
shows the timing of shifting data from TSa to TSb on DU (DD). In
Figure 47a)
shifting is done in one frame because TSa and TSb didn’t succeed direct one another (a,
b = 0...29 and b ³ a+2 . In
Figure 47b)
shifting is done from one frame to the following
frame. This is the case when the time slots succeed one other (b = a+1) or b is smaller
than a (b < a).
At looping and shifting the data can be accessed by the controller between the
synchronous transfer interrupt (STI) and the status overflow interrupt (STOV). STI and
STOV are explained in the section ’Synchronous Transfer’. If there is no controller
intervention the looping and shifting is done autonomous.
Data Sheet
87
2003-02-04