AT91SAM9G45-EKES Atmel, AT91SAM9G45-EKES Datasheet - Page 145

• Manufacturer Part Number: AT91SAM9G45-EKES
• Description: KIT EVAL FOR AT91SAM9G45
• Manufacturer: Atmel
• Series: AT91SAM Smart ARMr
• Type: MCUr

Specifications of AT91SAM9G45-EKES

• Contents: Board
• Processor To Be Evaluated: SAM9G45
• Data Bus Width: 32 bit
• Interface Type: I2C, SPI, UART
• Maximum Operating Temperature: + 50 C
• Minimum Operating Temperature: - 10 C
• Operating Supply Voltage: 1.8 V to 3.3 V
• For Use With/related Products: AT91SAM9G45
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: Q4626953

19.7.3
Name:
Addresses: 0xFFFFEA80 [0], 0xFFFFEA88 [1], 0xFFFFEA90 [2], 0xFFFFEA98 [3], 0xFFFFEAA0 [4], 0xFFFFEAA8 [5],
Access:
This register can only be written if the WPEN bit is cleared in the
• MxPR: Master x Priority
Fixed priority of Master x for accessing the selected slave. The higher the number, the higher the priority.
All the masters programmed with the same MxPR value for the slave make up a priority pool.
Round-Robin arbitration is used inside the lowest (MxPR = 0) and highest (MxPR = 3) priority pools.
Fixed priority is used inside intermediate priority pools (MxPR = 1) and (MxPR = 2).
See
6438F–ATARM–21-Jun-10
Section 19.5.2 “Arbitration Priority Scheme”
31
23
15
–
–
–
7
–
Bus Matrix Priority Registers A For Slaves
MATRIX_PRAS0...MATRIX_PRAS7
0xFFFFEAB0 [6], 0xFFFFEAB8 [7]
Read-write
30
22
14
–
–
–
6
–
29
21
13
5
M7PR
M5PR
M3PR
M1PR
for details.
28
20
12
4
“Write Protect Mode
27
19
11
–
–
–
3
–
26
18
10
–
–
–
2
–
Register”.
AT91SAM9G45
25
17
9
1
M6PR
M4PR
M2PR
M0PR
24
16
8
0
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