Copyright © Siemens AG 2016. All rights reserved
120
ERTEC 200P-2 Manual
Technical data subject to change
Version 1.0
HW_DMA_REQ
(controls DMA transfers to / from serial peripherals):
HW_DMA_REQ_0
UART1_TX-FIFO half-
full_of_less
high
UART1 Tx-FIFO not half full
(set GDMA to INCR8 mode)
HW_DMA_REQ_1
UART1_RX-FIFO not empty
high
UART1 Rx-FIFO not empty
(set GDMA to single mode)
HW_DMA_REQ_2
UART2_TX-FIFO half-
full_of_less
high
UART2 Tx-FIFO not half full
(set GDMA to INCR8 mode)
HW_DMA_REQ_3
UART2_RX-FIFO not empty
high
UART2 Rx-FIFO not empty
(set GDMA to single mode)
HW_DMA_REQ_4
UART3_TX-FIFO half-
full_of_less
high
UART3 Tx-FIFO not half full
(set GDMA to INCR8 mode)
HW_DMA_REQ_5
UART3_RX-FIFO not empty
high
UART3 Rx-FIFO not empty
(set GDMA to single mode)
HW_DMA_REQ_6
UART4_TX-FIFO half-
full_of_less
high
UART4 Tx-FIFO not half full
(set GDMA to INCR8 mode)
HW_DMA_REQ_7
UART4_RX-FIFO not empty
high
UART4 Rx-FIFO not empty
(set GDMA to single mode)
HW_DMA_REQ_8
SPI1_SSPRXDMA
high
SPI1 Rx-FIFO not empty - DMA
request
(set GDMA to single mode)
HW_DMA_REQ_9
SPI1_SSPTXINTR
high
SPI1 Tx-FIFO not half full - DMA
request
(the SSPTXINTR interrupt (Trans-
mit FIFO is half full or less)
must
be enabled; set GDMA to INCR4
mode)
HW_DMA_REQ_10
SPI1_SSPTX_
Delayed_Request
high
SPI1 transmit delayed – DMA
request (mapped in the GDMA
Shell)
Expiry of timer 4 when 'SPI1 Tx-
FIFO not half full' sets this bit; set
GDMA to single byte transfer.
DMA_ACK is used
resets this bit.
HW_DMA_REQ_11
SPI2_SSPRXDMA
high
SPI2 Rx-FIFO not empty - DMA
request
(set GDMA to single mode)
HW_DMA_REQ_12
SPI2_SSPTXINTR
high
SPI2 Tx-FIFO not half full - DMA
request
(the SSPTXINTR interrupt (Trans-
mit FIFO is half full or less)
must
be enabled; set GDMA to INCR4
mode)
Содержание ERTEC 200P
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