NEC uPD78056Y - Manual (Page 132)

132
CHAPTER 6 PORT FUNCTIONS
Table 6-2. Port Functions (
µ
PD78054Y subseries) (1/2)
Pin Name Function Alternate Function
P00 Input only INTP0/TI00
P01 INTP1/TI01
P02 Input/output mode can be specified in 1-bit INTP2
P03 Port 0. units. INTP3
P04 8-bit input/output port. When used as an input port, an on-chip INTP4
P05 pull-up resistor can be used by software. INTP5
P06 INTP6
P07 Input only XT1
Port 1.
P10 to P17 8-bit input/output port. ANI0 to ANI7
Input/output mode can be specified in 1-bit units.
When used as an input port, an on-chip pull-up resistor can be used by software.
P20 SI1
P21 SO1
P22 Port 2. SCK1
P23 8-bit input/output port. STB
P24 Input/output mode can be specified in 1-bit units. BUSY
P25 When used as an input port, an on-chip pull-up resistor can be used by software. SI0/SB0/SDA0
P26 SO0/SB1/SDA1
P27 SCK0/SCL
P30 TO0
P31 TO1
P32 Port 3. TO2
P33 8-bit input/output port. TI1
P34 Input/output mode can be specified in 1-bit units. TI2
P35 When used as an input port, an on-chip pull-up resistor can be used by software. PCL
P36 BUZ
P37 —
Port 4.
8-bit input/output port.
P40 to P47 Input/output mode can be specified in 8-bit units. AD0 to AD7
When used as an input port, an on-chip pull-up resistor can be used by software.
Test input flag (KRIF) is set to 1 by falling edge detection.
Port 5.
8-bit input/output port.
P50 to P57 LED can be driven directly. A8 to A15
Input/output mode can be specified in 1-bit units.
When used as an input port, an on-chip pull-up resistor can be used by software.