ip dhcp pool TEST
network 10.200.0.0 255.255.0.0
default-router y.y.y.y
next-server x.x.x.x
ip dhcp excluded-address 10.200.0.0 10.200.22.99
ip dhcp excluded-address 10.200.22.201 10.200.255.255
Where x.x.x.x is the address of the tftp server. You probably also want to set other parameters such as DNS.
Here's the link to the documentation.
Hope this helps,
Regards,
Harold Ritter, CCIE #4168 (EI, SP)