AT91SAM9G45-EKES Atmel, AT91SAM9G45-EKES Datasheet - Page 481

• 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

30.6.31
Register Name:
Addresses:
Access Type:
Reset Value:
• WPEN: Write Protect Enable
0 = Disables the Write Protect if WPKEY corresponds to 0x50494F (“PIO” in ASCII).
1 = Enables the Write Protect if WPKEY corresponds to 0x50494F (“PIO” in ASCII).
Protects the registers listed below:
• WPKEY: Write Protect KEY
Should be written at value 0x534D43 (“SMC” in ASCII). Writing any other value in this field aborts the write operation of the
WPEN bit. Always reads as 0.
6438F–ATARM–21-Jun-10
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“PIO Enable Register” on page 466
“PIO Disable Register” on page 466
“PIO Output Enable Register” on page 467
“PIO Output Disable Register” on page 468
“PIO Input Filter Enable Register” on page 469
“PIO Input Filter Disable Register” on page 469
“PIO Set Output Data Register” on page 470
“PIO Clear Output Data Register” on page 471
“PIO Multi-driver Enable Register” on page 474
“PIO Multi-driver Disable Register” on page 475
“PIO Pull Up Disable Register” on page 476
“PIO Pull Up Enable Register” on page 476
“PIO Peripheral A Select Register” on page 477
“PIO Peripheral B Select Register” on page 478
“PIO Output Write Enable Register” on page 479
“PIO Output Write Disable Register” on page 479
31
23
15
—
7
PIO Write Protect Mode Register
30
22
14
—
0xFFFFF2E4 (PIOA), 0xFFFFF4E4 (PIOB), 0xFFFFF6E4 (PIOC), 0xFFFFF8E4 (PIOD),
0xFFFFFAE4 (PIOE)
Read-write
See
6
PIO_WPMR
Table 30-2
29
21
13
—
5
28
20
12
—
4
WPKEY
WPKEY
WPKEY
27
19
11
—
3
26
18
10
—
2
AT91SAM9G45
25
17
—
9
1
WPEN
24
16
8
0
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