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HT67F60 Datasheet(PDF) 85 Page - Holtek Semiconductor Inc |
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HT67F60 Datasheet(HTML) 85 Page - Holtek Semiconductor Inc |
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85 / 242 page  HT67F30/HT67F40/HT67F50/HT67F60 TinyPowerTM A/D Flash Type 8-Bit MCU with LCD & EEPROM Rev. 1.50 84 March 06 , 2012 Rev. 1.50 85 March 06 , 2012 Input/Output Ports Holtek microcontrollers offer considerable flexibility on their I/O ports. With the input or output designation of every pin fully under user program control, pull-high selections for all ports and wake-up selections on certain pins, the user is provided with an I/O structure to meet the needs of a wide range of application possibilities. The device provides bidirectional input/output lines labeled with port names PA~PH These I/O ports are mapped to the RAM Data Memory with specific addresses as shown in the Special Purpose Data Memory table. All of these I/O ports can be used for input and output operations. For input operation, these ports are non-latching, which means the inputs must be ready at the T2 rising edge of instruction “MOV A, [m]”, where m denotes the port address. For output operation, all the data is latched and remains unchanged until the output latch is rewritten. I/O Register List ● HT67F30 Register Name Bit 7 6 5 4 3 2 1 0 PAWU D7 D6 D5 D4 D3 D2 D1 D0 PAPU D7 D6 D5 D4 D3 D2 D1 D0 PA D7 D6 D5 D4 D3 D2 D1 D0 PAC D7 D6 D5 D4 D3 D2 D1 D0 PBPU — — D5 D4 D3 D2 D1 D0 PB — — D5 D4 D3 D2 D1 D0 PBC — — D5 D4 D3 D2 D1 D0 PCPU — — — — — — D1 D0 PC — — — — — — D1 D0 PCC — — — — — — D1 D0 PDPU D7 D6 D5 D4 D3 D2 D1 D0 PD D7 D6 D5 D4 D3 D2 D1 D0 PDC D7 D6 D5 D4 D3 D2 D1 D0 PEPU D7 D6 D5 D4 D3 D2 D1 D0 PE D7 D6 D5 D4 D3 D2 D1 D0 PEC D7 D6 D5 D4 D3 D2 D1 D0 |
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