MC68HC708XL36 FREESCALE [Freescale Semiconductor, Inc], MC68HC708XL36 Datasheet - Page 132

• Manufacturer Part Number: MC68HC708XL36
• Description: HCMOS Microcontroller Unit
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

DMA
DMA Registers
MC68HC708XL36
132
The following registers control and monitor operation of the DMA:
DC1, DSC, and DC2 can be written during a DMA transfer without
affecting DMA latency.
The following registers control operation of each of the DMA channels:
Writing to DxSH:DxSL, DxDH:DxDL, DxC, and DxBL during a transfer
affects DMA latency. A write to a channel x control register during a
transfer has a two-bus cycle latency if the transfer is first suspended by
disabling the channel. Disable the channel by writing a 0 to the TECx bit
in DMA control register 1. Without first suspending the transfer, a write
to a channel x control register during a transfer has a three-bus cycle
latency.
•
•
•
•
•
•
•
•
Freescale Semiconductor, Inc.
For More Information On This Product,
DMA control register 1 (DC1)
DMA status and control register (DSC)
DMA control register 2 (DC2)
DMA source address registers, high and low (D0SH:D0SL,
D1SH:D1SL, and D2SH:D2SL)
DMA destination address registers, high and low (D0DH:D0DL,
D1DH:D1DL, and D2DH:D2DL)
DMA channel x control registers (D0C–D2C)
DMA channel x byte count registers (D0BC–D2BC)
DMA channel x block length registers (D0BL–D2BL)
Go to: www.freescale.com
DMA
MOTOROLA
22-dma_b