AT91R40807-33AI Atmel, AT91R40807-33AI Datasheet - Page 98

• Manufacturer Part Number: AT91R40807-33AI
• Description: IC ARM7 MCU 176 TQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91R40807-33AI

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, UART/USART
• Peripherals: WDT
• Number Of I /o: 32
• Program Memory Type: ROMless
• Ram Size: 136K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

SF Memory Mode Register
This register only applies to the AT91R40807.
Register Name: SF_MMR
Access Type:
Reset Value:
Offset:
• RAMWU: Internal Extended RAM Write Detection (Code Label SF_RAMWU)
0 = Writing in RAM generates an Abort.
1 = Writing in RAM is allowed.
SF Protect Mode Register
Register Name: SF_PMR
Access Type:
Reset Value:
Offset:
• PMRKEY: Protect Mode Register Key (Code Label SF_PMRKEY)
Used only when writing SF_PMR. PMRKEY is reads 0.
0x27A8: Write access in SF_PMR is allowed.
Other value: Write access in SF_PMR is prohibited.
• AIC: AIC Protect Mode Enable (Code Label SF_AIC)
0 = The Advanced Interrupt Controller runs in Normal Mode.
1 = The Advanced Interrupt Controller runs in Protect Mode.
See “Protect Mode” on page 60.
98
31
23
15
31
23
15
–
–
–
–
–
–
7
7
AT91X40 Series
Read/Write
0
0x0C
Read/Write
0
0x18
30
22
14
30
22
14
–
–
–
6
–
–
6
–
AIC
29
21
13
29
21
13
–
–
–
5
–
–
5
28
20
12
28
20
12
–
–
–
–
–
–
4
4
PMRKEY
PMRKEY
27
19
27
19
11
11
–
–
–
–
–
–
3
3
26
18
10
26
18
10
–
–
–
2
–
–
2
–
25
17
25
17
–
–
9
–
1
–
9
–
1
–
1354D–ATARM–08/02
RAMWU
24
16
24
16
–
–
–
–
–
8
0
8
0