ATSAM3X4EA-AU Atmel, ATSAM3X4EA-AU Datasheet - Page 457

• Manufacturer Part Number: ATSAM3X4EA-AU
• Description: ARM Microcontrollers - MCU QFP144,GREEN, IND TEMP, MRL A
• Manufacturer: Atmel

Specifications of ATSAM3X4EA-AU

• Rohs: yes
• Core: ARM Cortex M3
• Processor Series: SAM3X
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 84 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 64 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 2.4 V to 3.6 V
• Operating Temperature Range: - 40 C to +85 C
• Package / Case: LQFP-144
• Mounting Style: SMD/SMT
• Factory Pack Quantity: 60

Figure 27-23. Write Access with NWAIT Assertion in Frozen Mode (EXNW_MODE = 10)
11057B–ATARM–28-May-12
11057B–ATARM–28-May-12
Internally synchronized
NWAIT signal
NBS0, NBS1,
A0,A1
D[15:0]
NWAIT
A [23:2]
NWE
MCK
NCS
6
The assertion of the NWAIT signal outside the expected period is ignored as illustrated in
27-24.
4
5
4
3
3
2
1
2
Write cycle
EXNW_MODE = 10 (Frozen)
WRITE_MODE = 1 (NWE_controlled)
NWE_PULSE = 5
NCS_WR_PULSE = 7
1
2
FROZEN STATE
1
2
1
2
1
0
0
SAM3X/A
SAM3X/A
Figure
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