M42800A Atmel Corporation, M42800A Datasheet - Page 188

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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
AC and DC Parameters
7.13
7-16
Synchronous interrupt timing
Symbol
T
T
sih
sis
Figure 7-12 shows the ARM7TDMI processor synchronous interrupt timing. The
timing parameters used in Figure 7-12 are listed in Table 7-12.
MCLK
nIRQ
nFIQ
Parameter
Synchronous nFIQ, nIRQ hold from MCLKf with ISYNC=1
Synchronous nFIQ, nIRQ setup to MCLKf, with ISYNC=1
Copyright © 1994-2001. All rights reserved.
Table 7-12 Synchronous interrupt timing parameters
Figure 7-12 Synchronous interrupt timing
T
sis
T
sih
Minimum
Minimum
Parameter type
ARM DDI 0029G

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