M42800A Atmel Corporation, M42800A Datasheet - Page 189

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M42800A

Manufacturer Part Number
M42800A
Description
Manufacturer
Atmel Corporation
Datasheets

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
7.14
ARM DDI 0029G
Debug timing
RANGEOUT0
RANGEOUT1
Figure 7-13 shows the ARM7TDMI processor synchronous interrupt timing. The
timing parameters used in Figure 7-13 are listed in Table 7-13.
EXTERN[1]
Symbol
T
T
T
T
T
T
T
T
BREAKPT
DBGACK
brkh
brks
dbgd
dbgh
dbgrq
exth
exts
rg
DBGRQI
DBGRQ
MCLK
Copyright © 1994-2001. All rights reserved.
Parameter
Hold time of BREAKPT from MCLKr
Set up time of BREAKPT to MCLKr
MCLKr to DBGACK valid
DGBACK hold time from MCLKr
DBGRQ to DBGRQI valid
EXTERN[1:0] hold time from MCLKf
EXTERN[1:0] set up time to MCLKf
MCLKf to RANGEOUT0, RANGEOUT1 valid
T
T
rgh
exts
T
exth
T
rg
T
dbgrq
T
T
dbgh
T
brks
rqs
T
T
rqh
brkh
T
Table 7-13 Debug timing parameters
dbgd
Figure 7-13 Debug timing
AC and DC Parameters
Parameter type
Minimum
Minimum
Minimum
Minimum
Minimum
Maximum
Maximum
Maximum
7-17

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