SAM3A8C Atmel Corporation, SAM3A8C Datasheet - Page 602
SAM3A8C
Manufacturer Part Number
SAM3A8C
Description
Manufacturer
Atmel Corporation
- Current page: 602 of 1465
- Download datasheet (26Mb)
Figure 30-9. Receiver Block Diagram
30.7.4
602
602
SSC_RCMR.STTDLY != 0
SAM3X/A
SAM3X/A
Start
TXEN
RX Start
RF
SSC_TCMR.START
Selector
The transmitter and receiver can both be programmed to start their operations when an event
occurs, respectively in the Transmit Start Selection (START) field of SSC_TCMR and in the
Receive Start Selection (START) field of SSC_RCMR.
Under the following conditions the start event is independently programmable:
A start can be programmed in the same manner on either side of the Transmit/Receive Clock
Register (RCMR/TCMR). Thus, the start could be on TF (Transmit) or RF (Receive).
Moreover, the Receiver can start when data is detected in the bit stream with the Compare
Functions.
Detection on TF/RF input/output is done by the field FSOS of the Transmit/Receive Frame Mode
Register (TFMR/RFMR).
Start
• Continuous. In this case, the transmission starts as soon as a word is written in SSC_THR
• Synchronously with the transmitter/receiver
• On detection of a falling/rising edge on TF/RF
• On detection of a low level/high level on TF/RF
• On detection of a level change or an edge on TF/RF
and the reception starts as soon as the Receiver is enabled.
load
SSC_RFMR.FSLEN
RXEN
RF
RC0R
SSC_RCMR.START
SSC_RSHR
Selector
Start
Receive Shift Register
RX Controller counter reached STTDLY
RX Start
SSC_RFMR.DATNB
SSC_RFMR.MSBF
load
SSC_RFMR.DATLEN
SSC_RHR
SSC_CR.RXEN
SSC_CR.RXDIS
RX Controller
SSC_SR.RXEN
Receiver Clock
11057A–ATARM–17-Feb-12
11057A–ATARM–17-Feb-12
RD
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