Holtek HT66F002 - PASR Register - HT66 F002;HT66 F0025

Rev. 1.71 60 April 11, 2017 Rev. 1.71 61 April 11, 2017
HT66F002/HT66F0025/HT66F003/HT66F004
Cost-Effective A/D Flash MCU with EEPROM
HT66F002/HT66F0025/HT66F003/HT66F004
Cost-Effective A/D Flash MCU with EEPROM
Pin-shared Registers
Thelimitednumberofsuppliedpinsinapackagecanimposerestrictionsontheamountoffunctions
acertaindevicecancontain.Howeverbyallowingthesamepinstoshareseveraldifferentfunctions
andprovidingameansoffunctionselection,awiderangeofdifferentfunctionscanbeincorporated
intoevenrelativelysmallpackagesizes.
• PASR Register – HT66F002/HT66F0025
Bit 7 6 5 4 3 2 1 0
Name PAS7 PAS6 PAS5 PAS4 PAS3 PAS2 PAS1 PAS0
R/W R/W R/W R/W R/W R/W R/W R/W R/W
POR 0 0 0 0 0 0 0 0
Bit7~6 PAS7~PAS6:Pin-SharedControlBits
00:PA5/INT
01:STP0B
10:PA5/INT
11:AN3
Bit5~4 PAS5~PAS4: Pin-SharedControlBits
00:PA2/INT
01:STP0
10:VREFO
11:AN2
Bit3~2 PAS3~PAS2: Pin-SharedControlBits
00:PA1
01:STP0B
10:VREF
11:AN1
Bit1~0 PAS1~PAS0: Pin-SharedControlBits
00:PA0/STP0I
01:STP0
10:PA0/STP0I
11:AN0