AT32UC3L064_1 ATMEL [ATMEL Corporation], AT32UC3L064_1 Datasheet - Page 454

• Manufacturer Part Number: AT32UC3L064_1
• Description: AVR32 32-bit Microcontroller
• Manufacturer: ATMEL [ATMEL Corporation]

21.7.3.2
Figure 21-6. Master Mode Flow Diagram
32099A–AVR32–06/09
Master mode flow diagram
1
RDR(RD) = Serializer
Serializer = TDR(TD)
NPCS = TDR(PCS)
Delay DLYBCS
Delay DLYBCT
Delay DLYBS
Data Transfer
NPCS = 0xF
SPI Enable
TDRE = 1
RDRF = 1
CSAAT ?
CSAAT ?
TDRE ?
TDRE ?
0
0
1
0
PS ?
1
peripheral
Variable
0
1
1
0
NPCS = MR(PCS)
peripheral
Fixed
- NPCS defines the current Chip Select
- CSAAT, DLYBS, DLYBCT refer to the fields of the
- When NPCS is 0xF, CSAAT is 0.
NPCS = TDR(PCS)
Chip Select Register corresponding to the Current Chip Select
Delay DLYBCS
NPCS = 0xF
TDR(PCS)
= NPCS ?
no
1
PS ?
peripheral
Variable
0
yes
peripheral
Fixed
NPCS = MR(PCS),
Delay DLYBCS
NPCS = 0xF
= NPCS ?
MR(PCS)
no
TDR(PCS)
AT32UC3L
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