AT83C5122_08 ATMEL [ATMEL Corporation], AT83C5122_08 Datasheet - Page 207

• Manufacturer Part Number: AT83C5122_08
• Description: C51 Microcontroller with USB and Smart Card Reader Interfaces
• Manufacturer: ATMEL [ATMEL Corporation]

4202F–SCR–07/2008
Microcontroller Reset ....................................................................... 170
Power Management .......................................................................... 178
Electrical Characteristics ................................................................. 184
Packaging Information ..................................................................... 199
Datasheet Revision History ............................................................. 204
Table of Contents ............................................................................. 205
Registers........................................................................................................... 160
Interrupt Sources and Vectors .......................................................................... 169
Introduction ....................................................................................................... 170
Power On Reset (POR) .................................................................................... 171
Power Fail Detector (PFD)................................................................................ 171
Reset pin........................................................................................................... 173
Watchdog Timer ............................................................................................... 175
Idle Mode .......................................................................................................... 178
Power Down Mode ........................................................................................... 178
Reduced EMI Mode .......................................................................................... 179
USB Interface ................................................................................................... 180
Smart Card Interface ........................................................................................ 181
Keyboard Interface ........................................................................................... 182
Watchdog Timer during Power-down and Idle Mode........................................ 182
Registers........................................................................................................... 183
Absolute Maximum Ratings ..............................................................................184
DC Parameters .................................................................................................184
LED’s ................................................................................................................186
Smart Card Interface ........................................................................................ 187
USB Interface ................................................................................................... 190
AC Parameters ................................................................................................. 191
Float Waveforms............................................................................................... 197
Ordering Information......................................................................................... 199
Changes from 4202A to 4202B ........................................................................204
Changes from 4202B to 4202C ........................................................................204
Changes from 4202C to 4202D ........................................................................204
Changes from 4202D to 4202E ........................................................................204
Changes from 4202E to 4202F .........................................................................204
AT83R5122, AT8xC5122/23
207