AT89C5131A-M(2005) View Datasheet(PDF) - Atmel Corporation
Part Name
Description
Manufacturer
AT89C5131A-M Datasheet PDF : 184 Pages
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Registers ............................................................................................................. 43
In-System Programming (ISP) ........................................................... 44
Flash Programming and Erasure ....................................................................... 44
Boot Process ...................................................................................................... 45
Application-Programming-Interface .................................................................... 46
XROW Bytes ...................................................................................................... 46
Hardware Conditions .......................................................................................... 46
On-chip Expanded RAM (ERAM) ....................................................... 48
Timer 2 ................................................................................................. 51
Auto-reload Mode ............................................................................................... 51
Programmable Clock Output .............................................................................. 52
Programmable Counter Array (PCA) ................................................. 56
PCA Capture Mode ............................................................................................ 63
16-bit Software Timer/Compare Mode ............................................................... 63
High Speed Output Mode ................................................................................... 64
Pulse Width Modulator Mode ............................................................................. 65
PCA Watchdog Timer......................................................................................... 66
Serial I/O Port ...................................................................................... 67
Framing Error Detection ..................................................................................... 67
Automatic Address Recognition ......................................................................... 68
Baud Rate Selection for UART for Mode 1 and 3 .............................................. 70
UART Registers ................................................................................................. 73
Interrupt System ................................................................................. 77
Overview ............................................................................................................ 77
Registers ............................................................................................................ 78
Interrupt Sources and Vector Addresses ............................................................ 85
Keyboard Interface ............................................................................. 86
Introduction......................................................................................................... 86
Description ......................................................................................................... 86
Registers ............................................................................................................ 87
Programmable LED ............................................................................. 90
Serial Peripheral Interface (SPI) ........................................................ 91
Features ............................................................................................................. 91
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