AT91SAM7S256C-MU Atmel, AT91SAM7S256C-MU Datasheet - Page 176

• Manufacturer Part Number: AT91SAM7S256C-MU
• Description: IC ARM7 MCU 32BIT 256K 64-QFN
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7S256C-MU

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 55MHz
• Connectivity: I²C, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 64K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-VQFN Exposed Pad, 64-HVQFN, 64-SQFN, 64-DHVQFN
• Processor Series: AT91
• Core: ARM7TDMI
• Data Bus Width: 32 bit
• Data Ram Size: 64 KB
• Interface Type: SPI, TWI, USART, USB
• Maximum Clock Frequency: 55 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 5
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Operating Temperature Range: - 40 C to + 85 C
• For Use With: AT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9AT91SAM7S-EK - KIT EVAL FOR ARM AT91SAM7S
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details
• Other names: AT91SAM7S256-MU; AT91SAM7S256-MU

23.8
23.8.1
The AIC is mapped at the address 0xFFFF F000. It has a total 4-Kbyte addressing space. This permits the vectoring fea-
ture, as the PC-relative load/store instructions of the ARM processor support only an ± 4-Kbyte offset.
Table 23-2.
Notes:
176
Offset
0x10C
0x11C
0x12C
0x13C
0x100
0x104
0x108
0x110
0x114
0x118
0x120
0x124
0x128
0x130
0x134
0x138
0x140
0x144
0x148
0x7C
0xFC
0000
0x04
0x80
0x84
---
---
Advanced Interrupt Controller (AIC) User Interface
1. The reset value of this register depends on the level of the external interrupt source. All other sources are cleared at reset,
2. PID2...PID31 bit fields refer to the identifiers as defined in the Peripheral Identifiers Section of the product datasheet.
AT91SAM7S Series Preliminary
Base Address
thus not pending.
Register Mapping
Register
Source Mode Register 0
Source Mode Register 1
---
Source Mode Register 31
Source Vector Register 0
Source Vector Register 1
---
Source Vector Register 31
Interrupt Vector Register
FIQ Interrupt Vector Register
Interrupt Status Register
Interrupt Pending Register
Interrupt Mask Register
Core Interrupt Status Register
Reserved
Reserved
Interrupt Enable Command Register
Interrupt Disable Command Register
Interrupt Clear Command Register
Interrupt Set Command Register
End of Interrupt Command Register
Spurious Interrupt Vector Register
Debug Control Register
Reserved
Fast Forcing Enable Register
Fast Forcing Disable Register
Fast Forcing Status Register
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
AIC_SMR31
AIC_SVR31
AIC_EOICR
AIC_SMR0
AIC_SMR1
AIC_SVR0
AIC_SVR1
AIC_FFER
AIC_FFDR
AIC_FFSR
AIC_CISR
AIC_IECR
AIC_IDCR
AIC_ICCR
AIC_ISCR
AIC_DCR
AIC_FVR
AIC_SPU
AIC_IMR
AIC_IVR
AIC_ISR
AIC_IPR
Name
---
---
---
---
---
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read-only
Read-only
Read-only
Read-only
Read-only
Read-only
Write-only
Write-only
Write-only
Write-only
Write-only
Write-only
Write-only
Read-only
Access
---
---
---
---
---
6175K–ATARM–30-Aug-10
Reset
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
---
---
---
---
---
---
---
---
---
---
---
---
(1)