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HT85F2270 Datasheet(PDF) 101 Page - Holtek Semiconductor Inc |
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HT85F2270 Datasheet(HTML) 101 Page - Holtek Semiconductor Inc |
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101 / 226 page  Rev. 1.00 101 of ��6 �a� 1�� �01� Standard 8051 8-Bit Flash MCU HT85F2260/HT85F2270/HT85F2280 T2CON Register SFR Address: C8h Bit 7 6 5 4 3 2 1 0 Name — I�FR I�FR T�R1 T�R0 T�C� T�I1 T�I0 R/W — R/W R/W R/W R/W R/W R/W R/W POR — 0 0 0 0 0 0 0 Bit 7 Unimplemented, read as "0" Bit 6 I3FR: Active edge selection for external interrupt “INT3” and PCA module 0 Compare and Capture functions 0: Falling edge 1: Rising edge This bit is used to select the external interrupt triggered edge for INT3, the PCA Module 0 Compare mode output interrupt triggered edge and the PCA Module 0 Capture mode input triggered edge. Once the compare mode is enabled, the PCA interrupt will replace the external interrupt. When Timer 2 is selected as compare mode 0, the I3FR bit is recommended to be set high by firmware. Bit 5 I2FR: Active edge selection for external interrupt “INT2” 0: Falling edge 1: Rising edge Bit 4~3 T2R1, T2R0: Timer 2 reload mode selection Described elsewhere Bit 2 T2CM: Timer 2 Compare mode selection Described elsewhere Bit 1~0 T2I1, T2I0: Timer 2 input selection Described elsewhere T3CON Register SFR Address: A1h Bit 7 6 5 4 3 2 1 0 Name GATE� C/T� T��1 T��0 — — TF� TR� R/W R/W R/W R/W R/W — — R/W R/W POR 0 0 0 0 — — 0 0 Bit 7 GATE3: Timer 3 Gate Control Described elsewhere Bit 6 C/T3: Timer 3 Counter/Timer selection Described elsewhere Bit 5~4 T3M1, T3M0: Timer 3 mode selection Described elsewhere Bit 3~2 Unimplemented, read as "0" Bit 1 TF3: Timer 3 interrupt request flag 0: No request 1: Interrupt request This bit will be cleared by hardware automatically. Bit 0 TR3: Timer 3 run flag Described elsewhere |
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