SAM3A4C Atmel Corporation, SAM3A4C Datasheet - Page 390
SAM3A4C
Manufacturer Part Number
SAM3A4C
Description
Manufacturer
Atmel Corporation
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• LOCK_IF_L: Master Interface Arbiter Lock
0 (CHUNK): The Master Interface Arbiter is locked by the channel x for a chunk transfer.
1 (BUFFER): The Master Interface Arbiter is locked by the channel x for a buffer transfer.
• AHB_PROT: AHB Protection
AHB_PROT field provides additional information about a bus access and is primarily used to implement some level of
protection.
• FIFOCFG: FIFO Configuration
390
390
AHB_PROT[2]
Value
HPROT[3]
00
01
10
SAM3X/A
SAM3X/A
ASAP_CFG
ALAP_CFG
HALF_CFG
Name
AHB_PROT[1]
HPROT[2]
Description
The largest defined length AHB burst is performed on the destination AHB interface.
When half FIFO size is available/filled, a source/destination request is serviced.
When there is enough space/data available to perform a single AHB access, then the
request is serviced.
AHB_PROT[0]
HPROT[1]
HPROT[0]
1
1: Privileged Access
11057A–ATARM–17-Feb-12
11057A–ATARM–17-Feb-12
0: Not Bufferable
0: Not cacheable
0: User Access
1: Cacheable
1: Bufferable
Description
Data access
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