How can I check the ADSL downstream speed in 1700?

Hello

I've got a 1700 with 2 ATM interfaces, but I only see the upstream speed in the us_bwidth field:

cisco# show controller atm 0 Interface: ATM0, Hardware: DSLSAR (with Alcatel ADSL Module), State: up IDB: 829F5098 Instance: 829F68C4 reg_dslsar:68030000 wic_regs:

us_bwidth:320