PEF82902FV11XP Lantiq, PEF82902FV11XP Datasheet - Page 69

• Manufacturer Part Number: PEF82902FV11XP
• Manufacturer: Lantiq

Specifications of PEF82902FV11XP

• Lead Free Status / Rohs Status: Supplier Unconfirmed

• Local D-channel source commences with D data transmission on IOM
• After D-channel data transmission is completed the controller sets the BAC bit to
• T-SMINT
• T-SMINT
Note: If right after D-data transmission the D-channel arbiter goes to state ’Ready’ and
2. Terminal Transmits D-Channel Data Upstream
The initial state is identical to that described in the last paragraph. When one of the
connected S-bus terminals needs to transmit in the D-channel, access is established
according to the following procedure:
• S-transceiver recognizes that the D-channel on the S-bus is active via D = ’0’.
• S-transceiver transfers S-bus D-channel data transparently through to the upstream
2.3.6
The deactivation procedure of the IOM
detecting the code DI (Deactivation Indication) the T-SMINT
DC (Deactivation Confirmation) during subsequent frames and stops the timing signals
after the fourth frame. The clocks stop at the end of the C/I-code in IOM
Data Sheet
T-SMINT
block all connected S-bus terminals (E = D).
it receives S/G = “0”.
ONE.
controller on IOM
IOM
the local D-channel source wants to transmit again, then it may happen that the
leading ’0’ of the start flag is written into the D-channel before the D-channel
source recognizes that the S/G bit is pulled to ’1’ and stops transmission. In order
to prevent unintended transitions to state ’S-Access’, the additional condition CNT
source may start transmission again (if TIC bus is occupied). This allows an equal
access for D-channel sources on IOM
â
2 is introduced. As soon as CNT
-2 bus.
Activation/Deactivation of IOM
â
â
â
I S-transceiver transmits inverted echo channel (E bits) on the S-bus to
I S-transceiver transmits non-inverted echo (E = D).
I S-transceiver pulls S/G bit to ONE (’Ready’ state) to block the D-channel
â
-2.
â
57
n, the S/G bit is set to ’0’ and the D-channel
-2 interface is shown in Figure 31. After
â
-2 and on the S interface.
®
-2 Interface
â
I responds by transmitting
Functional Description
â
â
-2 channel 0.
-2 as long as
PEF 82902
2001-11-09