Hitachi SH7751 Hardware Manual page 523

Note: If a transfer request is issued while transfer is disabled, the transfer enable wait state
(transfer suspended state) is entered. Transfer is started when subsequently enabled (by
setting DE = 1, DME = 1, TE = 0, NMIF = 0, AE = 0).
Rev. 3.0, 04/02, page 484 of 1064