ATSAM3S ATMEL [ATMEL Corporation], ATSAM3S Datasheet - Page 41

• Manufacturer Part Number: ATSAM3S
• Description: AT91 ARM Cortex M3-based Processor
• Manufacturer: ATMEL [ATMEL Corporation]

10.10 Real Time Clock
10.11 General Purpose Backup Registers
10.12 Nested Vectored Interrupt Controller
10.13 Chip Identification
6500AS–ATARM–11-Dec-09
Table 10-1.
• Low power consumption
• Full asynchronous design
• Two hundred year calendar
• Programmable Periodic Interrupt
• Alarm and update parallel load
• Control of alarm and update Time/Calendar Data In
• Eight 32-bit general-purpose backup registers
• Thirty maskable external interrupts
• Sixteen priority levels
• Processor state automatically saved on interrupt entry, and restored on
• Dynamic reprioritization of interrupts
• Priority grouping.
• Support for tail-chaining and late arrival of interrupts.
• Processor state automatically saved on interrupt entry, and restored on interrupt exit, with no
• Chip Identifier (CHIPID) registers permit recognition of the device and its revision.
• JTAG ID: 0x05B2D03F
instruction overhead.
ATSAM3S4C (Rev A)
ATSAM3S2C (Rev A)
ATSAM3S1C (Rev A)
ATSAM3S4A (Rev A)
ATSAM3S2A (Rev A)
ATSAM3S1A (Rev A)
ATSAM3S4B (Rev A)
ATSAM3S2B (Rev A)
ATSAM3S1B (Rev A)
– Alarm register capable to generate a wake-up of the system through the Shut Down
– selection of preempting interrupt levels and non-preempting interrupt levels.
– back-to-back interrupt processing without the overhead of state saving and
Controller
restoration between interrupts.
Chip Name
SAM3S Chip IDs Register
Flash Size
(KBytes)
256
128
256
128
256
128
64
64
64
Pin Count
100
100
100
48
48
48
64
64
64
DBGU_CIDR
0x28AA0760
0x28800960
0x288A0760
0x28900960
0x289A0760
0x28A00960
0x28A90560
0x28890560
0x28990560
SAM3S Summary
CHIPID_EXID
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
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