PSoC 6 WiFi-BT Pioneer Kit Guide, Doc. # 002-22677 Rev. *B
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DMAs
DMA
Priority
Used For
DW0_0
1
SDIO
DW0_2
1
SDIO
DW1_1
0
SDIO. Must be highest priority DMA in system
DW1_3
0
SDIO. Must be highest priority DMA in system
Do not create another DMA channel that will block DW1_1 or DW1_3 for a long period. All other channels
must be of lower priority and preemptable. Never disable the DMA.
Bus Access Priority
DW1 = 0 (Highest)
DW0 = 1
CM4 = 2
CM0+ = 2
Do not change, required for SDIO operation
SysTick
SysTick is configured to run off CM4 Clock (100 MHz), and is configured to run at 1 msec.
Trigger Muxes
The following Trigger Muxes are used for SDIO and should not be modified:
(TRIG10_IN_CPUSS_DW0_TR_OUT2, TRIG10_OUT_UDB_TR_DW_ACK4)
(TRIG14_IN_UDB_TR_UDB5, TRIG14_OUT_TR_GROUP0_INPUT49)
(TRIG0_IN_TR_GROUP14_OUTPUT6, TRIG0_OUT_CPUSS_DW0_TR_IN1)
(TRIG14_IN_UDB_TR_UDB0, TRIG14_OUT_TR_GROUP0_INPUT48)
(TRIG1_IN_TR_GROUP14_OUTPUT5, TRIG1_OUT_CPUSS_DW1_TR_IN3)
(TRIG14_IN_UDB_TR_UDB6, TRIG14_OUT_TR_GROUP0_INPUT47)
(TRIG1_IN_TR_GROUP14_OUTPUT4, TRIG1_OUT_CPUSS_DW1_TR_IN1)
(TRIG14_IN_UDB_TR_UDB3, TRIG14_OUT_TR_GROUP0_INPUT46)
(TRIG0_IN_TR_GROUP14_OUTPUT3, TRIG0_OUT_CPUSS_DW0_TR_IN0)