Renesas M32R/ECU Series, User Manual

Page: 180 / 839

8
8-7
INPUT/OUTPUT PORTS AND PIN FUNCTIONS
32180 Group User’s Manual (Rev.1.0)
8.3.1 Port Data Registers
P0 Data Register (P0DATA) <Address: H’0080 0700>
P1 Data Register (P1DATA) <Address: H’0080 0701>
P2 Data Register (P2DATA) <Address: H’0080 0702>
P3 Data Register (P3DATA) <Address: H’0080 0703>
P4 Data Register (P4DATA) <Address: H’0080 0704>
P6 Data Register (P6DATA) <Address: H’0080 0706>
P7 Data Register (P7DATA) <Address: H’0080 0707>
P8 Data Register (P8DATA) <Address: H’0080 0708>
P9 Data Register (P9DATA) <Address: H’0080 0709>
P10 Data Register (P10DATA) <Address: H’0080 070A>
P11 Data Register (P11DATA) <Address: H’0080 070B>
P12 Data Register (P12DATA) <Address: H’0080 070C>
P13 Data Register (P13DATA) <Address: H’0080 070D>
P14 Data Register (P14DATA) <Address: H’0080 070E>
P15 Data Register (P15DATA) <Address: H’0080 070F>
P16 Data Register (P16DATA) <Address: H’0080 0710>
P17 Data Register (P17DATA) <Address: H’0080 0711>
P18 Data Register (P18DATA) <Address: H’0080 0712>
P19 Data Register (P19DATA) <Address: H’0080 0713>
P20 Data Register (P20DATA) <Address: H’0080 0714>
P21 Data Register (P21DATA) <Address: H’0080 0715>
P22 Data Register (P22DATA) <Address: H’0080 0716>
9 10 11 12 13 14 b15) (b8
1 2 3 4 5 6 b7 b0
Pn0DT Pn1DT Pn2DT Pn3DT Pn4DT Pn5DT Pn6DT Pn7DT
? ? ? ? ? ? ? ?
n = 0–22 (not including P5)
<After reset: Undefined>
b Bit Name Function R W
0(b8) Pn0DT <At read> R W
Port Pn0 data bit Depends on how the Port Direction Register is set
1(b9) Pn1DT If direction bit = "0" (input mode) R W
Port Pn1 data bit 0: Port input pin = "low"
2(b10) Pn2DT 1: Port input pin = "high" R W
Port Pn2 data bit If direction bit = "1" (output mode) (Note 1)
3(b11) Pn3DT 0: Port output latch = "0" / Port pin level = "low" R W
Port Pn3 data bit 1: Port output latch = "1" / Port pin level = "high"
4(b12) Pn4DT <At write> R W
Port Pn4 data bit Write to the port output latch
5(b13) Pn5DT R W
Port Pn5 data bit
6(b14) Pn6DT R W
Port Pn6 data bit
7(b15) Pn7DT R W
Port Pn7 data bit
Note 1: To select the port data to read, use the Port Input Special Function Control Register’s port input data select bit (PISEL).
Notes: • No data bits are provided for the following ports (read as "0", writing has no effect):
P40, P60, P90–P92, P120–P123, P170, P171, P204–P207
• The SBI# pin level can be read out by reading the P64DT bit. Writing to the P64DT bit has no effect.
• The MOD0 and MOD1 pin levels can be read out by reading the P80DT and P81DT bits, respectively. Writing to the P80DT
and P81DT bits has no effect.
• P221 and P223 are input-only ports. Writing to the P221DT and P223DT bits has no effect.
8.3 Input/Output Port Related Registers