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Table of Contents (Continued)
Chapter 8 DMA
Overview.............................................................................................................................................8-1
DMA Request Sources ........................................................................................................................8-2
DMA Operation ...................................................................................................................................8-2
External DMA DREQ/DACK Protocol............................................................................................8-3
Examples ...................................................................................................................................8-6
DMA Special Registers........................................................................................................................8-7
DMA Initial Source (DISRC) Register.............................................................................................8-7
DMA Initial Source Control (DISRCC) Register ...............................................................................8-7
DMA Initial Destination (DIDST) Register .......................................................................................8-8
DMA Initial Destination Control (DIDSTC) Register..........................................................................8-8
DMA Control (DCON) Register......................................................................................................8-9
DMA Status (DSTAT) Register......................................................................................................8-11
DMA Current Source (DCSRC) Register ........................................................................................8-11
Current Destination (DCDST) Register...........................................................................................8-12
DMA Mask Trigger (DMASKTRIG) Register....................................................................................8-13
Chapter 9 I/O Ports
Overview.............................................................................................................................................9-1
Port Control Descriptions .....................................................................................................................9-7
Port Configuration Register (GPACON-GPHCON)...........................................................................9-7
Port Data Register (GPADAT-GPHDAT) ........................................................................................9-7
Port Pull-up Register (GPBUP-GPHUP).........................................................................................9-7
Miscellaneous Control Register.....................................................................................................9-7
External Interrupt Control Register (EXTINTN).................................................................................9-7
Power_Off Mode and I/O Ports......................................................................................................9-7
I/O Port Control Register......................................................................................................................9-8
Port A Control Registers (GPACON/GPADAT) ...............................................................................9-8
Port B Control Registers (GPBCON, GPBDAT, and GPBUP)..........................................................9-9
Port C Control Registers (GPCCON, GPCDAT, and GPCUP)..........................................................9-10
Port D Control Registers (GPDCON, GPDDAT, and GPDUP)..........................................................9-12
Port E Control Registers (GPECON, GPEDAT, and GPEUP)..........................................................9-14
Port F Control Registers (GPFCON, GPFDAT, and GPFPU) ...........................................................9-16
Port G Control Registers (GPGCON, GPGDAT, and GPGUP).........................................................9-17
Port H Control Registers (GPHCON, GPHDAT, and GPHUP)..........................................................9-19
Miscellaneous Control Register (MISCCR).....................................................................................9-20
Dclk Control Registers (DCLKCON)...............................................................................................9-21
External Interrupt Control Register (EXTINTN).................................................................................9-22
External Interrupt Filter Register (EINTFLTN)..................................................................................9-25
External Interrupt Mask Register (EINTMASK)...............................................................................9-26
External Interrupt Pending Register (EINTPENDN)..........................................................................9-27
General Status Register (GSTATUSN)...........................................................................................9-28