Chapter 3 · 4 Digital Systems Sincron INFORMATION is INTERCHANGED at PREDETERMINED instants of...
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1 Digital Systems Comunicació Paral.lel Chapter 3 Parallel Comunication
Transcript of Chapter 3 · 4 Digital Systems Sincron INFORMATION is INTERCHANGED at PREDETERMINED instants of...
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Digital Systems
Comunicació Paral.lel
Chapter 3Parallel Comunication
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Digital Systems
Introducció
SYSTEM = ELEMENTS + INTERCONNECTSSYSTEM = ELEMENTS + INTERCONNECTS
BUS BUS == SET OF INTERCONNECT LINESSET OF INTERCONNECT LINES
To SYSTEMATIZE, this set of lines or BUS To SYSTEMATIZE, this set of lines or BUS is made HOMOGENEOUS. Accordingly, we is made HOMOGENEOUS. Accordingly, we
are lead to different CLASIFICATIONS in are lead to different CLASIFICATIONS in relation to the ASPECTS CONSIDERED.relation to the ASPECTS CONSIDERED.
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Digital Systems
ClasificacióCONNECTIVITYCONNECTIVITY1. One Transmitter & Many Receivers (1TXR)1. One Transmitter & Many Receivers (1TXR)2. Many Transmitters & One Receiver (XT1R)2. Many Transmitters & One Receiver (XT1R)3. 3. Many Transmitters & One ReceiverMany Transmitters & One Receiver (XTXR)(XTXR)FUNCTIONALITYFUNCTIONALITY1. DATA Bus1. DATA Bus2. ADDRESS Bus2. ADDRESS Bus3. CONTROL Bus3. CONTROL BusSYNCRONIZATIONSYNCRONIZATION1. SYNCRONOUS Bus 1. SYNCRONOUS Bus 2. SEMISYNCRONOUS Bus2. SEMISYNCRONOUS Bus3. ASYNCRONOUS Bus3. ASYNCRONOUS BusTOPOLOGYTOPOLOGY1. STAR Bus1. STAR Bus2. DAISY2. DAISY--CHAIN BusCHAIN Bus3. SHARED LINE Bus3. SHARED LINE Bus
BUS CLASSIFICATION
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Digital Systems
Sincron
INFORMATION is INTERCHANGED at PREDETERMINED INFORMATION is INTERCHANGED at PREDETERMINED instants of time, with a single CLOCK (CLK).instants of time, with a single CLOCK (CLK).
T1 T2 T3
tl
CLK
ADD
AS
D
STRICTLY SYNCRONOUS
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Digital Systems
SemisincronSEMISINCRONOUS
instants are PREFIXED, but can be DELAYED by means of a instants are PREFIXED, but can be DELAYED by means of a control signal (WAIT control signal (WAIT óó READY)READY)
T1 T2 T3CLK
ADD
tl
AS
D
TW
WAIT
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Digital Systems
AsincronSEMISINCRONASINCRONOUS
instants are not prefixed. THERE IS NO CLOCK.instants are not prefixed. THERE IS NO CLOCK.
ADD
AS
D
DS
DTACK
1
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4
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Digital Systems
PipelineBASIC TRANSFER WITH PIPELINE
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Digital Systems
Bus AMBA
AMBA Bus(Advanced Microcontroller Bus Architecture)
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Digital Systems
GeneralAMBA BUS : APLICATION
AHBAHB: HIGH PERFORMANCE (UNIDIRECTIONAL DATA BUS): HIGH PERFORMANCE (UNIDIRECTIONAL DATA BUS)ASBASB: MEDIUM PERFORMANCE (BIDIRECTIONAL DATA BUS): MEDIUM PERFORMANCE (BIDIRECTIONAL DATA BUS)APBAPB: FOR PERIFERALS (SIMPLE TRANSFERS): FOR PERIFERALS (SIMPLE TRANSFERS)
HIGH PERFORMANCE BUS FOR MICROCONTROLERS (ON CHIP)HIGH PERFORMANCE BUS FOR MICROCONTROLERS (ON CHIP)
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Digital Systems
AHBBus AMBA
AHB Bus
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Digital Systems
MasterAMBA AHB: MASTER
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Digital Systems
SlaveAMBA AHB: SLAVE
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Digital Systems
ArbiterAMBA AHB: ARBITER
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Digital Systems
Cicle d’arbitratgeAMBA AHB: ARBITRATION CYCLE
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Digital Systems
DecoderAMBA AHB: DECODER
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Digital Systems
Transferència bàsicaAMBA AHB: BASIC TRANSFER
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Digital Systems
Transferència amb waitAMBA AHB: TRANSFER WITH WAIT
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Digital Systems
Tipus de transferènciesAMBA AHB: TRANSFER TYPES
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Digital Systems
Cronograma dels tipusAMBA AHB: TRANSFER TYPES
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Digital Systems
Tipus de burstAMBA AHB: BURST TRANSFER TYPES
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Digital Systems
Burst cíclicAMBA AHB: BURST TRANSFER TYPES : WRAP AROUND
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Digital Systems
Burst incrementalAMBA AHB: BURST TRANSFER TYPES: INCREMENTAL
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Digital Systems
Burst indefinitAMBA AHB: BURST TRANSFER TYPES : UNDEFINED
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Digital Systems
Respostes slaveAMBA AHB: SLAVE RESPONSES
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Digital Systems
ExempleAMBA AHB: SLAVE RESPONSE EXEMPLE
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Digital Systems
APB
APB Bus
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Digital Systems
GeneralAMBA BUS : APLICATION
AHBAHB: HIGH PERFORMANCE (UNIDIRECTIONAL DATA BUS): HIGH PERFORMANCE (UNIDIRECTIONAL DATA BUS)ASBASB: MEDIUM PERFORMANCE (BIDIRECTIONAL DATA BUS): MEDIUM PERFORMANCE (BIDIRECTIONAL DATA BUS)APBAPB: FOR PERIFERALS (SIMPLE TRANSFERS): FOR PERIFERALS (SIMPLE TRANSFERS)
HIGH PERFORMANCE BUS FOR MICROCONTROLERS (ON CHIP)HIGH PERFORMANCE BUS FOR MICROCONTROLERS (ON CHIP)
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Digital Systems
BridgeAHB-APB BRIDGE
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Diagrama d’estatsAMBA APB: STATE DIAGRAM
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Transferencies APBAMBA APB: TRANSFERS
