52
鍗曠墖鏈烘湁
3
涓畾鏃跺櫒锛?/p>
T2
鏄竴涓?/p>
16
浣嶈嚜鍔ㄩ噸杞界殑锛屽儚
T0
鍜?/p>
T1
鐨勬柟寮?/p>
2
涓�鏍凤紝鍙笉杩囧畠鏄?/p>
16
浣嶉噸杞斤紝
濡傛灉浣滀负璁℃暟鍣ㄦ垨瀹氭椂鐢紝涓柇鐢ㄧ殑鏄?/p>
5
锛屽氨鏄?/p>
interrupt
5
锛?/p>
T2
鐨勫紩鑴氭槸
P1.0
鍙ｃ�?/p>
P1.0
浣滀负
I/O
鍙ｇ敤浜嗕互
鍚?/p>
T2
璁℃暟鏄笉琛屼簡锛屼笉杩囧畾鏃舵垨鏄綔涓轰覆鍙ｆ椂閽熻繕鏄彲浠ョ殑銆?/p>
蟀��蟀��
T2CON
锛?/p>
T2
鐨勬帶鍒跺瘎瀛樺櫒锛?/p>
,
瀛楄妭鍦板潃
0C8H
锛?/p>
0CFH 0CEH 0CDH 0CCH 0CBH 0CAH 0C9H 0C8H
TF2 EXF2 RCLK TCLK EXEN2 TR2 C/T2 CP/RT2
鍚勪綅鐨勫畾涔夊涓嬶細
TF2
锛氬畾鏃?/p>
/
璁℃暟鍣?/p>
2
婧㈠嚭鏍囧織锛?/p>
T2
婧㈠嚭鏃剁疆浣嶏紝骞剁敵璇蜂腑鏂�傚彧鑳界敤杞欢娓呴櫎锛屼絾
T2
浣滀负娉㈢壒鐜囧彂鐢熷櫒
浣跨敤鐨勬椂鍊欙紝
(
鍗?/p>
RCLK=1
鎴?/p>
TCLK=1),T2
婧㈠嚭鏃朵笉瀵?/p>
TF2
缃綅銆?/p>
EXF2
锛氬綋
EXEN2=1
鏃讹紝涓?/p>
T2EX
寮曡剼锛?/p>
P1.0
锛夊嚭鐜拌礋璺冲彉鑰岄�犳垚
T2
鐨勬崟鑾锋垨閲嶈鐨勬椂鍊欙紝
EXF2
缃綅骞剁敵璇?
涓柇銆?/p>
EXF2
涔熸槸鍙兘閫氳繃杞欢鏉ユ竻闄ょ殑銆?/p>
RCLK
锛氫覆琛屾帴鏀舵椂閽熸爣蹇楋紝鍙兘閫氳繃杞欢鐨勭疆浣嶆垨娓呴櫎锛涚敤鏉ラ�夋嫨
T1
锛?/p>
RCLK=0
锛夎繕鏄?/p>
T2
锛?/p>
RCLK=1
锛夋潵浣滀负
涓茶鎺ユ敹鐨勬尝鐗圭巼浜х敓鍣?/p>
TCLK
锛氫覆琛屽彂閫佹椂閽熸爣蹇楋紝鍙兘閫氳繃杞欢鐨勭疆浣嶆垨娓呴櫎锛涚敤鏉ラ�夋嫨
T1
锛?/p>
TCLK=0
锛夎繕鏄?/p>
T2
锛?/p>
TCLK=1
锛夋潵浣滀负
涓茶鍙戦�佺殑娉㈢壒鐜囦骇鐢熷櫒
EXEN2
锛?/p>
T2
鐨勫閮ㄥ厑璁告爣蹇楋紝鍙兘閫氳繃杞欢鐨勭疆浣嶆垨娓呴櫎锛?/p>
EXEN2=0
锛氱姝㈠閮ㄦ椂閽熻Е鍙?/p>
T2
锛?/p>
EXEN2=1
锛氬綋
T2
鏈敤浣滀覆琛屾尝鐗圭巼鍙戠敓鍣ㄦ椂锛屽厑璁稿閮ㄦ椂閽熻Е鍙?/p>
T2
锛屽綋
T2EX
寮曡剼杈撳叆涓�涓礋璺冲彉鐨勬椂鍊欙紝灏?/p>
寮曡捣
T2
鐨勬崟鑾锋垨閲嶈锛屽苟缃綅
EXF2
锛岀敵璇蜂腑鏂�?/p>
TR2
锛?/p>
T2
鐨勫惎鍔ㄦ帶鍒舵爣蹇楋紱
TR2=0
锛氬仠姝?/p>
T2
锛?/p>
TR2=1
锛氬惎鍔?/p>
T2
C/T2
锛?/p>
T2
鐨勫畾鏃舵柟寮忔垨璁℃暟鏂瑰紡閫夋嫨浣嶃�傚彧鑳介�氳繃杞欢鐨勭疆浣嶆垨娓呴櫎锛?/p>
C/T2=0
锛氶�夋嫨
T2
涓哄畾鏃跺櫒鏂瑰紡锛?
C/T2=1
锛氶�夋嫨
T2
涓鸿鏁板櫒鏂瑰紡锛屼笅闄嶆部瑙﹀彂銆?/p>
CP/RT2
锛氭崟鑾?/p>
/
閲嶈杞芥爣蹇楋紝鍙兘閫氳繃杞欢鐨勭疆浣嶆垨娓呴櫎銆?/p>
CP/RT2=0
鏃讹紝閫夋嫨閲嶈杞芥柟寮忥紝杩欐椂鑻?/p>
T2
婧㈠嚭
锛?/p>
EXEN2=0
鏃讹級鎴栬�?/p>
T2EX
寮曡剼锛?/p>
P1.0
锛夊嚭鐜拌礋璺冲彉锛?/p>
EXEN2=1
鏃讹級锛屽皢浼氬紩璧?/p>
T2
閲嶈杞斤紱
CP/RT2=1
鏃讹紝
閫夋嫨鎹曡幏鏂瑰紡锛岃繖鏃惰嫢
T2EX
寮曡剼锛?/p>
P1.0
锛夊嚭鐜拌礋璺冲彉锛?/p>
EXEN2=1
鏃讹級锛屽皢浼氬紩璧?/p>
T2
鎹曡幏鎿嶄綔銆備絾鏄鏋?/p>
RCLK=1
鎴?/p>
TCLK=1
鏃讹紝
CP/RT2
鎺у埗浣嶄笉璧蜂綔鐢ㄧ殑锛岃寮哄埗宸ヤ綔浜庡畾鏃跺櫒婧㈠嚭鑷姩閲嶈杞芥ā寮忋�?/p>
瀵瑰簲閮ぉ绁ヨ�佸笀鐨?/p>
52
鍗曠墖鏈烘澘瀛愶紒
/***********************************
绋嬪簭缂栬憲闄㈡牎
鍗楁槍鑸┖澶у
鏅舵尟
11.0592MHZ
T2CON
锛?/p>
0XC8
锛夌殑璇存槑
瀹氭椂鍣?/p>
2
鍙互浜х敓涓や釜涓柇
TF2
鍜?/p>
EXF2
锛岃繖涓や釜涓柇閫氳繃閫昏緫鎴栧叡浜竴涓鍙?/p>
瀹氭椂鍣?/p>
2
婧㈠嚭鏃?/p>
TF2
缃綅
濡傛灉瀹氭椂鍣ㄥ伐浣滃湪閲嶈妯″紡
RCAP2H
鍜?/p>
RCAP2L
鐨勫�间細鑷姩瑁呭叆
TH2
鍜?/p>
TL2
TR2
鍚姩
TF2
鍜?/p>
TL2
蹇呴』杞欢娓呴浂
T2MOD
蹇呴』瀹氫箟
sfr T2MOD= 0xC9;