M42800A Atmel Corporation, M42800A Datasheet - Page 115

• Manufacturer Part Number: M42800A
• Manufacturer: Atmel Corporation

Specifications of M42800A

• Flash (kbytes): 0 Kbytes
• Pin Count: 144
• Max. Operating Frequency: 33 MHz
• Cpu: ARM7TDMI
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 54
• Ext Interrupts: 54
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Uart: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 8
• Self Program Memory: NO
• External Bus Interface: 1
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.3/5.0
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

16. SF: Special Function Registers
16.1
SF User Interface
Chip ID Base Address: 0xFFF00000 (Code Label SF_BASE)
Table 16-1.
1779D–ATARM–14-Apr-06
Offset
0x0C
0x00
0x04
0x08
0x10
0x14
0x18
Chip Identification
SF Memory Map
Register
Chip ID Register
Chip ID Extension Register
Reset Status Register
Reserved
Reserved
Reserved
Protect Mode Register
The AT91M42800A provides registers that implement the following special functions:
The AT91M42800A chip identifier is 0x14280041.
• Chip Identification
• RESET Status
• Protect Mode (see
Section 14.9 ”Protect Mode” on page
SF_CIDR
SF_EXID
SF_PMR
SF_RSR
Name
–
–
–
Read/Write
85)
Read-only
Read-only
Read-only
Access
–
–
–
AT91M42800A
Reset State
See register
description
Hardwired
Hardwired
0x0
–
–
–
115