ISD91200 Series Technical Reference Manual
Release Date: Sep 16, 2019
- 350 -
Revision 2.4
PDMA Service Selection Control Register 1(PDMA_SVCSEL1)
Register
Offset
R/W
Description
Reset Value
PDMA_SVCSEL1
PDMA0x08
R/W
PDMA Service Selection Control Register 1
0xFFFF_FFFF
PDMA peripherals have transmit and/or receive request signals to control dataflow during PDMA
transfers. These signals must be connected to the PDMA channel assigned by software for use with
that peripheral. For instance if PDMA Channel 3 is to be used to transfer data from memory to DPWM
peripheral, then DPWMTXSEL should be set to 3. This will route the DPWM transmit request signal to
PDMA channel 3, whenever DPWM has space in FIFO it will request transmission of data from PDMA.
When not used the selection should be set to 0xFF.
31
30
29
28
27
26
25
24
Reserved
23
22
21
20
19
18
17
16
Reserved
SARADCRXSEL
15
14
13
12
11
10
9
8
SPI1TXSEL
SPI1RXSEL
7
6
5
4
3
2
1
0
UART1XSEL
UART1RXSEL
Table 5-152 PDMA
Service Selection Control Register
(PDMA_SVCSEL1, address 0x5000_8F04)
Bits
Description
[31:20]
Reserved
[19:16]
SARADCRXSEL
PDMA SARADC Receive Selection
This field defines which PDMA channel is connected to SARADC peripheral receive
(PDMA source) request.
[15:12]
SPI1TXSEL
PDMA SPI1 Transmit Selection
This field defines which PDMA channel is connected to SPI1 peripheral transmit
(PDMA destination) request.
[11:8]
SPI1RXSEL
PDMA SPI1 Receive Selection
This field defines which PDMA channel is connected to SPI1
peripheral receive
(PDMA source) request.
[7:4]
UART1XSEL
PDMA UART1 Transmit Selection
This field defines which PDMA channel is connected to UART1
peripheral transmit
(PDMA destination) request.
[3:0]
UART1RXSEL
PDMA UART1 Receive Selection
This field defines which PDMA channel is connected to UART1
peripheral receive
(PDMA source) request.