at32uc3b0512-z2ues ATMEL Corporation, at32uc3b0512-z2ues Datasheet - Page 283

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

20.9.4
Name:
Access Type:
Offset:
Reset value:
• FSLENHI: Receive Frame Sync Length High Part
• FSEDGE: Receive Frame Sync Edge Detection
• FSOS: Receive Frame Sync Output Selection
• FSLEN: Receive Frame Sync Length
32059J–12/2010
MSBF
FSEDGE
31
23
15
Others
FSOS
7
-
-
The four MSB of the FSLEN field.
Determines which edge on Frame Sync will generate the SR.RXSYN interrupt.
This field defines the length of the Receive Frame Sync signal and the number of bits sampled and stored in the RSHR register.
When this mode is selected by the RCMR.START field, it also determines the length of the sampled data to be compared to the
Compare 0 or Compare 1 register.
Note: The four most significant bits for this field are located in the FSLENHI field.
0
1
2
3
4
5
0
1
Receive Frame Mode Register
Selected Receive Frame Sync Signal
Frame Sync Edge Detection
Positive edge detection
Negative edge detection
None
Negative Pulse
Positive Pulse
Driven Low during data transfer
Driven High during data transfer
Toggling at each start of data transfer
Reserved
30
22
14
6
-
-
RFMR
Read/Write
0x14
0x00000000
FSLENHI
FSOS
LOOP
29
21
13
5
-
28
20
12
4
-
27
19
11
3
-
RX_FRAME_SYNC Pin
Undefined
Input-only
DATLEN
Output
Output
Output
Output
Output
26
18
10
2
-
FSLEN
DATNB
25
17
9
1
-
AT32UC3B
FSEDGE
24
16
8
0
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