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Chapter 26 DMA Controller
2.DMA Controller (DMAC) Registers
[Bits 28 to 24] IS4 to 0 (Input Select)*: Transfer source selection
These bits select the source of a transfer request note that the software transfer request by the STRG bit
function is always valid regardless of the setting of these bits. As listed in Table 2-1 "Settings for Transfer
Request Sources".
• When reset: IS4-0 is initialized to 00000
B
.
• When reset: EIS3-0 is initialized to 0000
B
.
• These bits are readable and writable.
Table 2-1 Settings for Transfer Request Sources
IS EIS RN Function Transfer stop request
00000 - - Activation by hardware prohibited
not available
00001
-
01101
--
Setting prohibited
-
Setting prohibited
01110 - - External DMA-pin high level or rising edge
01111 - - External DMA-pin low level or falling edge
10000 0000 0 External Interrupt 0 -
10001 0000 1 External Interrupt 1 -
10010 0000 2 External Interrupt 2 -
10011 0000 3 External Interrupt 3 -
10100 0000 4 Reload Timer 0 -
10101 0000 5 Reload Timer 1 -
10110 0000 6 USART (LIN) 0 RX available
10111 0000 7 USART (LIN) 0 TX -
11000 0000 8 USART (LIN) 1 RX available
11001 0000 9 USART (LIN) 1 TX -
11010 0000 10 USART (LIN, FIFO) 4 RX available
11011 0000 11 USART (LIN, FIFO) 4 TX -
11100 0000 12 USART (LIN, FIFO) 5 RX available
11101 0000 13 USART (LIN, FIFO) 5 TX -
11110 0000 14 A/D Converter -
11111 0000 15 Programmable Pulse Generator (PPG) 0 -
