M42800A Atmel Corporation, M42800A Datasheet - Page 155
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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ARM DDI 0029G
Operation type
normal
dest=pc
Cycle
1
2
3
1
2
3
4
5
Operations where the destination is the PC are not available in Thumb state.
Address
pc+2L
alu
pc+3L
pc+3L
pc+8
alu
pc+12
pc’
pc’+4
pc’+8
Note
Copyright © 1994-2001. All rights reserved.
MAS[1:0]
i
s
i
2
2
2
2
nRW
0
0
0
0
0
0
0
0
Table 6-9 Load register instruction cycle operations
Data
(pc+2L)
(alu)
-
(pc+8)
pc’
-
(pc’)
(pc’+4)
nMREQ
0
1
0
0
1
0
0
0
Table 6-10 MAS[1:0] signal encoding
SEQ
0
0
1
0
0
0
1
1
bit 1
0
0
1
1
Instruction Cycle Timings
nOPC
0
1
1
0
1
1
0
0
bit 0
0
1
0
1
Data size
byte
halfword
word
reserved
nTRANS
c
d
c
c
d
c
c
c
6-13
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