at32uc3b0512-z2ues ATMEL Corporation, at32uc3b0512-z2ues Datasheet - Page 274

• Manufacturer Part Number: at32uc3b0512-z2ues
• Description: 32-bit Avr Microcontroller
• Manufacturer: ATMEL Corporation

Figure 20-13. Transmit and Receive Frame Format in Edge/Pulse Start Modes
32059J–12/2010
RX_FRAME_SYNC
TX_FRAME_SYNC
(If FSDEN = 1)
(If FSDEN = 0)
RX_DATA
TX_DATA
TX_DATA
/
Start
(1)
Table 20-3.
Note:
Figure 20-14. Transmit Frame Format in Continuous Mode
Note:
Transmitter
From TSHR
Sync Data
Sync Data
To RSHR
TFMR
TFMR
TFMR
TFMR
TFMR
FSLEN
Example of input on falling edge of TX_FRAME_SYNC/RX_FRAME_SYNC.
STTDLY is written to zero. In this example, THR is loaded twice. FSDEN value has no effect on the
transmission. SyncData cannot be output in continuous mode.
From DATDEF
STTDLY
Default
Data Framing Format Registers
From DATDEF
Receiver
Default
Ignored
RFMR
RFMR
RFMR
TX_DATA
Start: 1. TXEMPTY set to one
{FSLENHI,FSLEN}
From THR
2. Write into the THR
From THR
DATLEN
Start
To RHR
Bit/Field
DATLEN
DATDEF
Data
Data
Data
FSDEN
PERIOD
MSBF
From THR
DATLEN
Data
DATNB
From THR
Up to 256
From THR
DATLEN
Up to 32
From THR
Length
DATLEN
To RHR
Data
Data
Data
Data
Size of word
Size of Synchro data register
Most significant bit first
Enable send TSHR
Data default value ended
From DATDEF
Default
Ignored
Default
Start
From DATDEF
Comment
Default
AT32UC3B
Sync Data
Sync Data
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