Holtek BS66F340 - Input;Output Ports

Rev. 1.60 90 August 20, 2019 Rev. 1.60 91 August 20, 2019
BS66F340/BS66F350/BS66F360/BS66F370
Touch A/D Flash MCU with LED Driver
BS66F340/BS66F350/BS66F360/BS66F370
Touch A/D Flash MCU with LED Driver
Input/Output Ports
Holtek microcontrollers offer considerable exibility 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.
These devices provide bidirectional input/output lines labeled with port names PA~PH. These I/O
ports are mapped to the RAM Data Memory with specic 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.
Register
Name
Bit
7 6 5 4 3 2 1 0
PA PA7 PA6 PA5 PA4 PA3 PA2 PA1 PA0
PAC PAC7 PAC6 PAC5 PAC4 PAC3 PAC2 PAC1 PAC0
PAPU PAPU7 PAPU6 PAPU5 PAPU4 PAPU3 PAPU2 PAPU1 PAPU0
PAWU PAWU7 PAWU6 PAWU5 PAWU4 PAWU3 PAWU2 PAWU1 PAWU0
PB PB7 PB6 PB5 PB4 PB3 PB2 PB1 PB0
PBC PBC7 PBC6 PBC5 PBC4 PBC3 PBC2 PBC1 PBC0
PBPU PBPU7 PBPU6 PBPU5 PBPU4 PBPU3 PBPU2 PBPU1 PBPU0
PC — — — — PC3 PC2 PC1 PC0
PCC — — — — PCC3 PCC2 PCC1 PCC0
PCPU — — — — PCPU3 PCPU2 PCPU1 PCPU0
PE — — PE5 PE4 PE3 PE2 PE1 PE0
PEC — — PEC5 PEC4 PEC3 PEC2 PEC1 PEC0
PEPU — — PEPU5 PEPU4 PEPU3 PEPU2 PEPU1 PEPU0
I/O Registers List – BS66F340
Register
Name
Bit
7 6 5 4 3 2 1 0
PA PA7 PA6 PA5 PA4 PA3 PA2 PA1 PA0
PAC PAC7 PAC6 PAC5 PAC4 PAC3 PAC2 PAC1 PAC0
PAPU PAPU7 PAPU6 PAPU5 PAPU4 PAPU3 PAPU2 PAPU1 PAPU0
PAWU PAWU7 PAWU6 PAWU5 PAWU4 PAWU3 PAWU2 PAWU1 PAWU0
PB PB7 PB6 PB5 PB4 PB3 PB2 PB1 PB0
PBC PBC7 PBC6 PBC5 PBC4 PBC3 PBC2 PBC1 PBC0
PBPU PBPU7 PBPU6 PBPU5 PBPU4 PBPU3 PBPU2 PBPU1 PBPU0
PC PC7 PC6 PC5 PC4 PC3 PC2 PC1 PC0
PCC PCC7 PCC6 PCC5 PCC4 PCC3 PCC2 PCC1 PCC0
PCPU PCPU7 PCPU6 PCPU5 PCPU4 PCPU3 PCPU2 PCPU1 PCPU0
PD PD7 PD6 PD5 PD4 PD3 PD2 PD1 PD0
PDC PDC7 PDC6 PDC5 PDC4 PDC3 PDC2 PDC1 PDC0
PDPU PDPU7 PDPU6 PDPU5 PDPU4 PDPU3 PDPU2 PDPU1 PDPU0
PE PE7 PE6 PE5 PE4 PE3 PE2 PE1 PE0
PEC PEC7 PEC6 PEC5 PEC4 PEC3 PEC2 PEC1 PEC0
PEPU PEPU7 PEPU6 PEPU5 PEPU4 PEPU3 PEPU2 PEPU1 PEPU0
I/O Registers List – BS66F350