Detailed Explanation; External Bus Control Register - Toshiba TX49 TMPR4937 Manual

7.3

Detailed Explanation

7.3.1

External Bus Control Register

The External Bus Controller (EBUSC) has eight channels. This register contains one Channel Control
Register (EBCCRn) for each channel, and all settings can be made independently for each channel.
Either Word or Double-word access is possible for a Control Register. However, be sure to make any
Enable settings to EBCCRn.ME last when using Word access and dividing register settings into two
accesses. If EBCCRn.ME is enabled before setting the base address, then unintended memory access
may result.
Chapter 7 External Bus Controller
7-3