DMP Electronics eBOX-3350MX-AP Instrukcja Użytkownika Pobierz pdf (Strona 76)

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 75

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

4. M6117D Power Saving Mode

Normal Bus Cycle

HALT cycle

Normal HALT mode

Power Saving mode

Coprocessor Cycle

Hold State

Halt instruction

PCSTP = 0

PCSTP = 1

NMI =1 or

INTR=1 or

Reset=1

NMI =1 or

INTR=1 or

Reset=1

HLDREQ=0

HLDREQ=1

HLDREQ=0

HLDREQ=1

Question : How to set PCSTP ? (Power Clock Stop)

Answer : MOV EAX, 00080000h

DB 0D6h, 0FAh, 03h, 02h

/* MOV PWRCR, EA0 */

1 2 ... 71 72 73 74 75 76 77 78 79 80 81 ... 111 112

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DMP Electronics eBOX-3350MX-AP Instrukcja Użytkownika Strona 76