ꢀ
SϞhan⍋gha䋱i Bኁellinⷑg-Sy߯strᖂon M⬉icrᄤoele᳝ctro䰤nics݀Coৌ., Ltꢀd.ꢀ
PB1ĔPB1 Pull-up
ꢁԡᏺ57&ⱘ0$6.ऩ⠛ᴎ㢃⠛%/ꢌꢆꢉꢅ
1˖ݙ
䚼 12Kohm ⱘ⬉䰏䖲ࠄ
PB1 ⱘ䕧ܹッDŽ
0˖PB1 ᮴Ϟᢝ⬉䰏DŽ
PB0ĔPB0 Pull-up
1˖ݙ
䚼 12Kohm ⱘ⬉䰏䖲ࠄ
PB0 ⱘ䕧ܹッDŽ
0˖PB0 ᮴Ϟᢝ⬉䰏DŽ
3.2.9 ߏ
૭ᄯծୀΗޗ
Ӊ୶ KBIMďKeyboard Interrupt Mask RegisterĐ
KBIM ⫼Ѣ䗝ᢽ PA ষⱘ䬂Ⲭᠿᦣࡳ
㛑ᰃ৺ᠧᓔDŽ
Address
$0B
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Reset
KBIM
KBE7 KBE6 KBE5 KBE 4 KBE 3 KBE 2 KBE 1 KBE 0 00000000
KBE7:KBE0ĔKeyboard Enable
1˖PA7:PA0 Ў䬂Ⲭᠿᦣ䕧ܹষDŽ
0˖PA7:PA0 Ў᱂䗮ⱘ I/O ষDŽ
3.2.10 ၶဈࣅ
ᄥޗ
Ӊ୶ MCRďMiscellanceous Control RegisterĐ
MCR ⫼Ѣࠊ
䬂ⲬЁᮁǃ38K 䕑⊶ RTC ⱘ⌟䆩DŽ
Address bit 7 bit 6
bit 5 bit 4 bit 3 bit 2 bit 1
bit 0
Reset
MCR
$0C KBIE KBIC RTCT
F38KE 00000000
KBIEĔKeyboard Interrupt Enable
0˖⽕ℶ䬂ⲬЁᮁDŽ
㋏㒳ԡᯊˈKBIE ⏙䳊DŽKBIE Ͼ⣀ゟⱘ䬂ⲬЁᮁ䗝ᢽԡ KBEx ᠻ㸠ĀϢā᪡ˈ
KBICĔKeyboard Interrupt Clear
1˖⏙䬂ⲬЁᮁ䫕ᄬֵোDŽ
0˖ֱ⬭䬂ⲬЁᮁ䫕ᄬֵোDŽ
㋏㒳ԡᯊˈKBIC ⏙䳊DŽડᑨ䬂ⲬЁᮁৢˈ䬂ⲬЁᮁ໘⧚ᄤᑣЁᑨᇍ⏙䬂ⲬЁᮁ
䫕ᄬֵোˈेᇍ KBIC ݭ
Ā1āDŽӏԩᯊ䇏 KBIC ⱘ㒧ᵰᘏЎĀ0āDŽ
RTCTĔRTC Test
1˖ᠧᓔ RTC ⌟䆩ᓣDŽ
0˖݇䯁 RTC ⌟䆩ᓣDŽ
RTCT ⫼Ѣᓔ݇ RTC ⱘ⌟䆩ᓣˈ䖯ܹ RTC ⌟䆩ᓣৢˈᇚ㋏㒳ᯊ䩳ᓩܹ RTC ഫˈ
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