
ML62Q1000 Series User's Manual
Chapter 14
DMA
Controller
FEUL62Q1000
14-11
14.2.7 DMA Status Register (DSTAT)
DSTAT is a special function register (SFR) used to indicate the status of the DMA transfer channels.
Address:
0xF722(DCSTATL/DSTAT), 0xF723(DCSTATH)
Access:
R
Access size: 8/16bit
Initial value:
0x0000
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Word
DSTAT
Byte
DSTATH
DSTATL
Bit
-
-
-
-
-
-
DC1ST
A
DC0ST
A
-
-
-
-
-
-
DC1IS
TA
DC0IS
TA
R/W
-
-
-
-
-
-
R
R
-
-
-
-
-
-
R
R
Initial
value
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
No.
Bit symbol
name
Description
15 to
11
-
Reserved bit
9, 8
DCnSTA,
(n=1,0)
These bits indicate that channel n is transferring, in the transfer channel fixed mode (DCF bit
of DCEN register is "1").
These bits are fixed to "0" in the transfer channel free mode (DCF bit = "0").
0: DMA channel n is stopped (initial value)
1: DMA channel n is transferring
7 to 2
-
Reserved bit
1, 0
DCnISTA,
(n=1,0)
These bits indicate that DMA transfer of channel n is completed.
Check the transfer is finished after the interrupt occurred by reading the DCnISTA bit.
The DCnISTA bits are cleared by writing "1" to corresponding bit of DMA interrupt status clear
register (DICLRn).
0: DMA channel n is running or stopped (initial value)
1: Operation of DMA channel n is completed
Содержание ML62Q1000 Series
Страница 17: ...Chapter 1 Overview...
Страница 112: ...Chapter 2 CPU and Memory Space...
Страница 154: ...Chapter 3 Reset Function...
Страница 166: ...Chapter 4 Power Management...
Страница 196: ...Chapter 5 Interrupts...
Страница 248: ...Chapter 6 Clock generation Circuit...
Страница 274: ...Chapter 7 Low Speed Time Base Counter...
Страница 291: ...Chapter 8 16 Bit Timer...
Страница 320: ...Chapter 9 Functional Timer FTM...
Страница 382: ...Chapter 10 Watchdog Timer...
Страница 402: ...Chapter 11 Serial Communication Unit...
Страница 456: ...Chapter 12 I2 C Bus Unit...
Страница 491: ...Chapter 13 I2 C Master...
Страница 512: ...Chapter 14 DMA Controller...
Страница 531: ...Chapter 15 Buzzer...
Страница 550: ...Chapter 16 Simplified RTC...
Страница 559: ...Chapter 17 GPIO...
Страница 594: ...Chapter 18 External Interrupt Function...
Страница 612: ...Chapter 19 CRC Generator...
Страница 632: ...Chapter 20 Analog Comparator...
Страница 644: ...Chapter 21 D A Converter...
Страница 655: ...Chapter 22 Voltage Level Supervisor...
Страница 676: ...Chapter 23 Successive Approximation Type A D Converter...
Страница 709: ...Chapter 24 Regulator...
Страница 714: ...Chapter 25 Flash Memory...
Страница 743: ...Chapter 26 Code Option...
Страница 750: ...Chapter 27 LCD Driver...
Страница 788: ...Chapter 28 On Chip Debug Function...
Страница 795: ...Chapter 29 Safety Function...
Страница 813: ...Appendix A...
Страница 881: ...Revision History...