DSPIC33FJ32GP302T-I/SO 查看數據表（PDF） - Microchip Technology
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DSPIC33FJ32GP302T-I/SO Datasheet PDF : 402 Pages
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dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 8-8: DMACS1: DMA CONTROLLER STATUS REGISTER 1
U-0
—
bit 15
U-0
U-0
U-0
R-1
R-1
R-1
—
—
—
LSTCH<3:0>
R-1
bit 8
R-0
PPST7
bit 7
R-0
PPST6
R-0
PPST5
R-0
PPST4
R-0
PPST3
R-0
PPST2
R-0
PPST1
R-0
PPST0
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 15-12
bit 11-8
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Unimplemented: Read as ‘0’
LSTCH<3:0>: Last DMA Channel Active bits
1111 = No DMA transfer has occurred since system Reset
1110-1000 = Reserved
0111 = Last data transfer was by DMA Channel 7
0110 = Last data transfer was by DMA Channel 6
0101 = Last data transfer was by DMA Channel 5
0100 = Last data transfer was by DMA Channel 4
0011 = Last data transfer was by DMA Channel 3
0010 = Last data transfer was by DMA Channel 2
0001 = Last data transfer was by DMA Channel 1
0000 = Last data transfer was by DMA Channel 0
PPST7: Channel 7 Ping-Pong Mode Status Flag bit
1 = DMA7STB register selected
0 = DMA7STA register selected
PPST6: Channel 6 Ping-Pong Mode Status Flag bit
1 = DMA6STB register selected
0 = DMA6STA register selected
PPST5: Channel 5 Ping-Pong Mode Status Flag bit
1 = DMA5STB register selected
0 = DMA5STA register selected
PPST4: Channel 4 Ping-Pong Mode Status Flag bit
1 = DMA4STB register selected
0 = DMA4STA register selected
PPST3: Channel 3 Ping-Pong Mode Status Flag bit
1 = DMA3STB register selected
0 = DMA3STA register selected
PPST2: Channel 2 Ping-Pong Mode Status Flag bit
1 = DMA2STB register selected
0 = DMA2STA register selected
PPST1: Channel 1 Ping-Pong Mode Status Flag bit
1 = DMA1STB register selected
0 = DMA1STA register selected
PPST0: Channel 0 Ping-Pong Mode Status Flag bit
1 = DMA0STB register selected
0 = DMA0STA register selected
DS70292D-page 138
Preliminary
2009 Microchip Technology Inc.
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