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PEB2256HT Datasheet(PDF) 384 Page - Infineon Technologies AG |
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PEB2256HT Datasheet(HTML) 384 Page - Infineon Technologies AG |
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384 / 490 page  FALC56 V1.2 PEB 2256 T1/J1 Registers Data Sheet 384 2002-08-27 Port Configuration 1 to 4 (Read/Write) Value after reset: 00H RPC(2:0) Receive multifunction port configuration The multifunction ports RP(A to D) are bidirectional. After Reset these ports are configured as inputs. With the selection of the pin function the In/Output configuration is also achieved. The input function SYPR may only be selected once, it must not be selected twice or more. Register PC1 configures port RPA, while PC2 → port RPB, PC3 → port RPC and PC4 → port RPD. 000 = SYPR: Synchronous Pulse Receive (Input) Together with register RC(1:0) SYPR defines the frame begin on the receive system interface. Because of the offset programming the SYPR and the RFM pin function cannot be selected in parallel. 001 = RFM: Receive Frame Marker (Output) CMR2.IRSP = 0: The receive frame marker is active high for one 1.544 MHz period during any bit position of the current frame. Programming of the bit position is done by using registers RC(1:0). The internal time slot assigner is disabled. The RFM offset calculation formula has to be used. CMR2.IRSP = 1: Internally generated frame synchronization pulse sourced by the DCO-R circuitry. The pulse is active low for one 1.544 MHz period. 010 = RMFB: Receive Multiframe Begin (Output) Marks the beginning of every received multiframe or optionally the begin of every CAS multiframe begin (active high). 70 PC1 RPC12 RPC11 RPC10 XPC13 XPC12 XPC11 XPC10 (80) PC2 RPC22 RPC21 RPC20 XPC23 XPC22 XPC21 XPC20 (81) PC3 RPC32 RPC31 RPC30 XPC33 XPC32 XPC31 XPC30 (82) PC4 RPC42 RPC41 RPC40 XPC43 XPC42 XPC41 XPC40 (83) |
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