ID

REG3

アドレス

$ECB006

短い説明

Expansion Memory Enable

ビットマップ

　bit 15 : insert wait ('1': insert wait, '0': no-wait) (default value = DE0Nano DipSw(2))
　bit 14-12 : reserved
　bit 11- 2 : ext mem block enable flags (if bit0 is '1' these will be overridden) (default value = '0')
　 bit 11 is for 0xbxxxxx block
　 bit 10 is for 0xaxxxxx block
　 bit 2 is for 0x2xxxxx block
　bit 1 : ext mem block enable flag for 0x1xxxxx block (default value = DE0Nano DipSw(1) )
　bit 0 : ext mem auto detect flag for 0x2xxxxx - 0xbxxxxx blocks (default value = DE0Nano DipSw(0))

説明

Expansion Memory Enable flags ('1': enable, '0': disable)