M42800A Atmel Corporation, M42800A Datasheet - Page 187
M42800A
Manufacturer Part Number
M42800A
Description
Manufacturer
Atmel Corporation
Datasheets
1.M40800.pdf
(284 pages)
2.M40800.pdf
(153 pages)
3.M42800A.pdf
(224 pages)
4.M42800A.pdf
(27 pages)
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
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19.7
SPIA Base Address: 0xFFFC8000
SPIB Base Address: 0xFFFCC000
Table 9. SPI Memory Map
1779D–ATARM–14-Apr-06
Offset
0x0C
0x1C
0x2C
0x3C
0x00
0x04
0x08
0x10
0x14
0x18
0x20
0x24
0x28
0x30
0x34
0x38
SPI Programmer’s Model
Register
Control Register
Mode Register
Receive Data Register
Transmit Data Register
Status Register
Interrupt Enable Register
Interrupt Disable Register
Interrupt Mask Register
Receive Pointer Register
Receive Counter Register
Transmit Pointer Register
Transmit Counter Register
Chip Select Register 0
Chip Select Register 1
Chip Select Register 2
Chip Select Register 3
SP_CSR0
SP_CSR1
SP_CSR2
SP_CSR3
SP_RDR
SP_RPR
SP_RCR
SP_TDR
SP_TPR
SP_TCR
SP_IMR
SP_IDR
SP_MR
SP_IER
SP_CR
SP_SR
Name
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Write-only
Read-only
Write-only
Read-only
Write-only
Write-only
Read-only
Access
AT91M42800A
Reset State
–
0
0
–
0
–
–
0
0
0
0
0
0
0
0
0
187
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