DMP Electronics eBOX-3350MX-AP Uživatelský manuál stáhnout pdf (Strana 74)

Jan Yin Chan Electronics Co.,LTD. 386SX Single Chip PC

M6117D : System on a chip

DM&P

Jan Yin Chan Electronics Co,. LTD. M6117D 386SX Single Chip PC Page 73

8F-1,No.22,Wuchyuan 2RD.,Hsin Chuang city Taipei Hsien, Taiwan, R.O.C. Tel: 886-(02) 2298-0770 Fax: (02) 2299-1883

B. Flowchart of Enabling the Shadowed Regions

C. SMI Control Flowchart

Shadowed ROM

Region Setting

Memory mode detection and initialization

LPORTW 015h,0AAh

Enable write and Disable read of page EF

Move data from ROM region to the Shadowed region

Method: (A) Read data in the address of page EF

(B) Write the same data to the same address

LPORTW 015h,055h

Enable Read and Disable write of page EF.

Finish Setting

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DMP Electronics eBOX-3350MX-AP Uživatelský manuál Strana 74