V DMA BLOCK: HSDMA (High-Speed DMA)
S1C33L03 FUNCTION PART
EPSON
B-V-2-7
A-1
B-V
HSDMA
In single-address mode, data transfer is performed between the memory connected to the system interface and
an external I/O device. The I/O device is accessed directly by the #DMAACKx signal, so it is unnecessary to
specify an address. DxADRL[15:0] and DxADRH[11:0] are not used in single-address mode.
Address increment/decrement control
The memory addresses can be incremented or decremented when one data transfer is completed. SxIN[1:0] is
used to set this function.
S0IN[1:0]:
Ch. 0 memory address control (D[D:C]) / Ch. 0 high-order source address set-up register (0x48226)
S1IN[1:0]:
Ch. 1 memory address control (D[D:C]) / Ch. 1 high-order source address set-up register (0x48236)
S2IN[1:0]:
Ch. 2 memory address control (D[D:C]) / Ch. 2 high-order source address set-up register (0x48246)
S3IN[1:0]:
Ch. 3 memory address control (D[D:C]) / Ch. 3 high-order source address set-up register (0x48256)
SxIN = "00": address fixed (default)
SxIN = "01": address decremented without initialization
SxIN = "10": address incremented with initialization
SxIN = "11": address incremented without initialization
Refer to the explanation in "Setting the Registers in Dual-Address Mode".
DxIN[1:0] is not used in single-address mode.
Enabling/Disabling DMA Transfer
The HSDMA transfer is enabled by writing "1" to the enable bit HSx_EN.
HS0_EN: Ch. 0 enable (D0) / Ch. 0 enable register (0x4822C)
HS1_EN: Ch. 1 enable (D0) / Ch. 1 enable register (0x4823C)
HS2_EN: Ch. 2 enable (D0) / Ch. 2 enable register (0x4824C)
HS3_EN: Ch. 3 enable (D0) / Ch. 3 enable register (0x4825C)
However, the control information must always be set correctly before enabling a DMA transfer.
Note that the control information cannot be set when HSx_EN = "1".
When HSx_EN is set to "0", HSDMA requests are no longer accepted.
When a DMA transfer is completed (transfer counter = 0), HSx_EN is reset to "0" to disable the following trigger
inputs.
Содержание CMOS 32-Bit Single Chip Microcomputer S1C33L03
Страница 4: ......
Страница 14: ......
Страница 15: ...S1C33L03 PRODUCT PART ...
Страница 16: ......
Страница 147: ...S1C33L03 FUNCTION PART ...
Страница 148: ......
Страница 149: ...S1C33L03 FUNCTION PART I OUTLINE ...
Страница 150: ......
Страница 152: ...I OUTLINE INTRODUCTION B I 1 2 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Страница 162: ...I OUTLINE LIST OF PINS B I 3 8 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Страница 163: ...S1C33L03 FUNCTION PART II CORE BLOCK ...
Страница 164: ......
Страница 166: ...II CORE BLOCK INTRODUCTION B II 1 2 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Страница 172: ...II CORE BLOCK CPU AND OPERATING MODE B II 2 6 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Страница 176: ...II CORE BLOCK INITIAL RESET B II 3 4 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Страница 224: ...II CORE BLOCK BCU Bus Control Unit B II 4 48 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Страница 250: ...II CORE BLOCK ITC Interrupt Controller B II 5 26 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Страница 262: ...II CORE BLOCK DBG Debug Unit B II 7 2 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Страница 263: ...S1C33L03 FUNCTION PART III PERIPHERAL BLOCK ...
Страница 264: ......
Страница 266: ...III PERIPHERAL BLOCK INTRODUCTION B III 1 2 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Страница 292: ...III PERIPHERAL BLOCK 8 BIT PROGRAMMABLE TIMERS B III 3 18 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Страница 318: ...III PERIPHERAL BLOCK 16 BIT PROGRAMMABLE TIMERS B III 4 26 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Страница 322: ...III PERIPHERAL BLOCK WATCHDOG TIMER B III 5 4 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Страница 414: ...III PERIPHERAL BLOCK INPUT OUTPUT PORTS B III 9 26 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Страница 415: ...S1C33L03 FUNCTION PART IV ANALOG BLOCK ...
Страница 416: ......
Страница 418: ...IV ANALOG BLOCK INTRODUCTION B IV 1 2 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Страница 434: ...IV ANALOG BLOCK A D CONVERTER B IV 2 16 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Страница 435: ...S1C33L03 FUNCTION PART V DMA BLOCK ...
Страница 436: ......
Страница 438: ...V DMA BLOCK INTRODUCTION B V 1 2 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Страница 492: ...V DMA BLOCK IDMA Intelligent DMA B V 3 18 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Страница 493: ...S1C33L03 FUNCTION PART VI SDRAM CONTROLLER BLOCK ...
Страница 494: ......
Страница 496: ...VI SDRAM CONTROLLER BLOCK INTRODUCTION B VI 1 2 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Страница 531: ...S1C33L03 FUNCTION PART VII LCD CONTROLLER BLOCK ...
Страница 532: ......
Страница 534: ...VII LCD CONTROLLER BLOCK INTRODUCTION B VII 1 2 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Страница 579: ...S1C33L03 FUNCTION PART Appendix I O MAP ...
Страница 580: ......