1-3 control registers – Panasonic MN101C77C User Manual
Page 154
Chapter 4 I/O Ports
IV - 4
Overview
4-1-3
Control Registers
Ports 0 to 2, ports 5 to 8 and port A are controlled by the data output register (PnOUT), the data input
register (PnIN), the I/O direction control register (PnDIR), the pull-up resistor control register (PnPLU) and
the pull-up / pull-down resistor control resister (PnPLUD) and registers (P1OMD, P1TCNT, PAIMD, FLOAT)
that control special function pin.
Table 4-1-3 shows the registers to control ports 0 to 2, Ports 5 to 8 and Port A ;
Table 4-1-2 I/O Port Control Registers List (1/2)
Regis ter
Address
R/W
Function
Page
P0OUT
x'03F10'
R/W
Port 0 output register
IV-7
P0IN
x'03F20'
R
Port 0 input regis ter
IV-7
P0DIR
x'03F30'
R/W
Port 0 direction control regis ter
IV-7
P0PLU
x'03F40'
R/W
Port 0 pull-up resistor control regis ter
IV-7
P1OUT
x'03F11'
R/W
Port 1 output register
IV-13
P1IN
x'03F21'
R
Port 1 input regis ter
IV-13
P1DIR
x'03F31'
R/W
Port 1 direction control regis ter
IV-13
P1PLU
x'03F41'
R/W
Port 1 pull-up resistor control regis ter
IV-13
P1OMD
x'03F2F'
R/W
Port 1 output mode register
IV-14
P1TCNT
x'03F7E'
R/W
Port 1 output control register
IV-14
P2OUT
x'03F12'
R/W
Port 2 output register
IV-17
P2IN
x'03F22'
R
Port 2 input regis ter
IV-17
P2DIR
x'03F32'
R/W
Port 2 direction control regis ter
IV-17
P2PLU
x'03F42'
R/W
Port 2 pull-up resistor control regis ter
IV-17
P5OUT
x'03F15'
R/W
Port 5 output register
IV-21
P5IN
x'03F25'
R
Port 5 input regis ter
IV-21
P5DIR
x'03F35'
R/W
Port 5 direction control regis ter
IV-21
P5PLU
x'03F45'
R/W
Port 5 pull-up resistor control regis ter
IV-21
P6OUT
x'03F16'
R/W
Port 6 output register
IV-27
P6IN
x'03F26'
R
Port 6 input regis ter
IV-27
P6DIR
x'03F36'
R/W
Port 6 direction control regis ter
IV-27
P6PLU
x'03F46'
R/W
Port 6 pull-up resistor control regis ter
IV-27
P6SYO
x'03F1E'
R/W
Port 6 synchronous output control register
IV-28
Port 6
Port 0
Port 1
Port 2
Port 5