Figure 20-27: Port Register 2 (P2); Figure 20-28: Port Mode Register 2 (Pm2) - NEC V850E/PH2 User Manual

(2) Control registers
(a) Port register 2 (P2)
The P2 register is an 8-bit register that controls reading the pin levels and writing the output levels
of port pins P20 to P27.
This register can be read or written in 8-bit or 1-bit units.
Reset input causes an undefined register content.
After reset: Undefined
7
P2 P27
P2n
0
1
Remark: n = 0 to 7
(b) Port mode register 2 (PM2)
The PM2 register is an 8-bit register that specifies the input or output mode.
This register can be read or written in 8-bit or 1-bit units.
Reset input sets this register to FFH.
After reset: FFH
7
PM2 PM27
PM2n
0
1
Remark: n = 0 to 7
PM2 is an 8 bit read/write register. It is the port mode register of Port 2. PM2 determines the input or
output direction of the respective port pin.
Chapter 20 Port Functions

Figure 20-27: Port Register 2 (P2)

R/W Address:
6 5
P26 P25
Input/Output Data Control of Pin P2n
Input mode: Low level is input
Output mode: Low level is output
Input mode: High level is input
Output mode: High level is output

Figure 20-28: Port Mode Register 2 (PM2)

R/W Address:
6 5
PM26 PM25
Input/Output Mode Control of Pin P2n (in Port Mode)
Output mode
Input mode
User's Manual U16580EE3V1UD00
FFFFF404H
4 3
P24 P23 P22
FFFFF424H
4 3
PM24 PM23 PM22
2 1 0
P21 P20
2 1 0
PM21 PM20
903