UPD78F1502AGK-GAK-AX Datasheet, PDF (62/1031 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcontrollers

78K0R/Lx3
CHAPTER 2 PIN FUNCTIONS
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2.2.3 P20 to P27
P20 to P27 function as an I/O port. This port can also be used for A/D converter analog input, and operational amplifier
I/O.
μ PD78F150xA
μ PD78F151xA
78K0R/LF3
78K0R/LG3
78K0R/LH3 78K0R/LF3 78K0R/LG3 78K0R/LH3
(80 pins)
(100 pins)
(128 pins)
(80 pins)
(100 pins)
(128 pins)
P20/ANI0/AMP0-
√
P20/ANI0
P21/ANI1/AMP0O
√
P20/ANI1
P22/ANI2/AMP0+
√
P20/ANI2
P23/ANI3/AMP1-
√
P20/ANI3
P24/ANI4/AMP1O
√
P20/ANI4
P25/ANI5/AMP1+
√
P20/ANI5
P26/ANI6/AMP2-
P26/ANI6
√
P26/ANI6
P27/ANI7/AMP2O
−
√
−
P27/ANI7
The following operation modes can be specified in 1-bit units.
(1) Port mode
P20 to P27 function as an I/O port. P20 to P27 can be set to input or output port in 1-bit units using port mode
register 2 (PM2).
(2) Control mode
P20 to P27 function as A/D converter analog input and operational amplifier I/O.
(a) ANI0 to ANI7
These are A/D converter analog input pins.
(b) AMP0-, AMP1-, AMP2-
These are pins that the input voltage on the negative side of operational amplifiers 0 to 2.
(c) AMP0+, AMP1+
These are pins that the input voltage on the positive side of operational amplifiers 0 and 1.
(d) AMP0O, AMP1O, AMP2O
These are operational amplifiers 0 to 2 output pins.
Cautions 1. P20/ANI0/AMP0- to P27/ANI7/ANP2O are set in the digital input (general-purpose port) mode after
release of reset.
2. When using at least one port of ports P20/ANI0/AMP0- to P27/ANI7/ANP2O as a digital port, set
AVDD0 to the same potential as EVDD or VDD.
R01UH0004EJ0501 Rev.5.01
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Jun 20, 2011