SAB 82526 N V2.2 Infineon Technologies, SAB 82526 N V2.2 Datasheet - Page 60
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SAB 82526 N V2.2
Manufacturer Part Number
SAB 82526 N V2.2
Description
IC CONTROLLER HSCX PLCC-44
Manufacturer
Infineon Technologies
Datasheet
1.SAB_82525_H_V2.2.pdf
(126 pages)
Specifications of SAB 82526 N V2.2
Controller Type
Serial Communications Controller (SCC)
Interface
Serial
Voltage - Supply
4.75 V ~ 5.25 V
Current - Supply
8mA
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
44-PLCC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
SAB82526NV2.2X
SAB82526NV22XK
SP000063650
SAB82526NV22XK
SP000063650
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5.3 Bus Configuration
Beside the point-to-point configuration, the HSCX effectively supports point-to-multipoint (pt-
mpt, or bus) configurations by means of internal idle and collision detection/collision resolution
methods.
In a pt-mpt configuration, comprising a central station (master) and several peripheral stations
(slaves), or in a multimaster configuration (see figure 6), data transmission can be initiated by
each station over a common transmit line (bus). In case more than one station attempt to
transmit data simultaneously (collision), the bus is assigned to one station by a collision-
resolution procedure implemented by the HSCX. The bus assignment function is based on a
priority principle with both fixed and rotating priorities that enables each station to access the
bus in a predeterminable time. As a result, any number of transmitters can be connected to the
serial bus.
Prerequisites for bus operation are:
The bus configuration is selected via the CCR1 register.
Note: Central clock supply for each station is not necessary if both the receive and transmit
Semiconductor Group
– NRZ encoding
– OR connection of data at the bus
– feedback of bus information (C DA/C DB input)
clock is recovered by the DPLL (clock mode 7). In this case, the function of the DPLL
also minimizes the phase shift between the transmit clocks of the individual transmitters
so that an opening flag sequence will be sufficient to allow a correct collision detection.
The bus mode can be operated independently of the clock mode, e.g. also during clock
mode 1 (receive and transmission strobe) or clock mode 5 (programmable time-slots).
60
SAB 82525
SAB 82526
SAF 82525
SAF 82526
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