TEND0 signal not output after DMA is completed

Hi,

I am new to RZ CPU. And I have face some problem on the DMA usage.

I am using DMA CH0 for external device.

I can perform the DMA transfer successfully but only for one time, as the TEND0 signal doesn't output.

I have configured the P7_10 functionality to TEND0.
I have configured the DMA as:
- CHCFG_0 register = 0x00211118
- DCTRL_0_7 register = 0x00000000
- DMARS0 register = 0x00000003
- CMNCR register bit TL0 = 0

I could see the DMA transfer end interrupt is triggered.
I could see the TC and END of CHSTAT_0 set to 1, EN clear to 0 (however RQST remained).
But the TEND0 signal always High (1).

Does anyone has any idea why cannot get the TEND0 output?