Newton Hardware

Hardware drivers - Protocols

Following protocols are controlling Newtons hardware:

• TFlash . TNewInternalFlash
• TFlash . TFlashAMD
• TFlash . TFlashSeries2
• TFlashDriver . T28F016_SA_SVDriver
• TSerialChip . TSerialChip16450
• TSerialChip . TSerialChipVoyager
• TSerialDebugLink . TAsyncDebugLink
• TSerialDebugLink . TGeoPortDebugLink
• TVoyagerMiscIntf . TVoyagerMiscIntfImpl
• TTabletDriver . TResistiveTablet
• PBatteryDriver . PCirrusBatteryDriver
• TPlatformDriver . TVoyagerPlatform
• TScreenDriver . TMainDisplayDriver
• TReservedContiguousMemory . TScreenMemory
• PSoundDriver . PCirrusSoundDriver

Hardware support classes

Hardware drivers implemented as protocols use few "hidden" classess for interaction with bare hardware:

• TBIOInterface
• TGPIOInterface
• TADC
• TDMAChannel
• TDMAManager
• TSerialDMAEngine
• TICHandler
• TCardSocket

TGPIOInterface

This is just a bunch of input/output lines. Every line could be independently programmed as input or output, and on input change an interrupt could be generated. These are my current notes for GPIO functions:

        0       0x0f18c000 R  GPIO Interrupt status     #4
        1       0x0f18c400 GPIO Interrupt               #8
        2       0x0f18c800 Int ack?                     #12
        3       0x0f18cc00 RW GPIO Interrupt            #16
        4       0x0f18d000 RW GPIO Interrupt            #20
        5       0x0f18d400 RW GPIO Input Data           #24
        6       0x0f18d800 RW GPIO Interrupt            #28
        7       0x0f18dc00 RW GPIO Pullup
        8       0x0f18e000 RW GPIO Polarity
        A       0x0f18e800 RW GPIO Direction
        B       0x0f18ec00 RW GPIO Output Data