AT91M42800A_0203 Datasheet, PDF (196/198 Pages) ATMEL Corporation – AT91 ARM Thumb Microcontrollers

PIO Multi-drive Status Register ........................................................................ 115
SF: Special Function Registers....................................................... 116
Chip Identification ............................................................................................. 116
Chip ID Register ............................................................................................... 117
Chip ID Extension Register............................................................................... 118
Reset Status Register....................................................................................... 119
SF Protect Mode Register ................................................................................ 119
USART: Universal Synchronous/
Asynchronous Receiver/Transmitter.............................................. 120
Pin Description.................................................................................................. 121
Baud Rate Generator........................................................................................ 122
Receiver............................................................................................................ 123
Transmitter........................................................................................................ 125
Multi-drop Mode................................................................................................ 125
Break ................................................................................................................ 125
Peripheral Data Controller ................................................................................ 127
Interrupt Generation.......................................................................................... 127
Channel Modes................................................................................................. 127
USART User Interface ...................................................................................... 129
USART Control Register................................................................................... 130
USART Mode Register ..................................................................................... 131
USART Interrupt Enable Register..................................................................... 133
USART Interrupt Disable Register.................................................................... 134
USART Interrupt Mask Register ....................................................................... 135
USART Channel Status Register...................................................................... 136
USART Receiver Holding Register ................................................................... 137
USART Transmitter Holding Register............................................................... 138
USART Baud Rate Generator Register ............................................................ 138
USART Receiver Time-out Register ................................................................. 139
USART Transmitter Time-guard Register......................................................... 139
USART Receive Pointer Register ..................................................................... 140
USART Receive Counter Register ................................................................... 140
USART Transmit Pointer Register.................................................................... 141
USART Transmit Counter Register .................................................................. 141
TC: Timer/Counter ............................................................................ 142
Signal Name Description(1, 2) ......................................................................... 143
Timer/Counter Description................................................................................ 144
Capture Operating Mode .................................................................................. 146
Waveform Operating Mode............................................................................... 149
TC User Interface ............................................................................................. 152
TC Block Control Register ................................................................................ 153
TC Block Mode Register ................................................................................... 154
TC Channel Control Register............................................................................ 155
iv AT91M42800A
1779B–ATARM–22-Mar-02