Datasheet

V850ES/JG3-H, V850ES/JH3-H CHAPTER 4 PORT FUNCTIONS
R01UH0042EJ0500 Rev.5.00 Page 118 of 1513
Aug 12, 2011
4.3.4 Port 3
Port 3 is a 10-bit port that controls I/O in 1-bit units.
Port 3 includes the following alternate-function pins.
Table 4-9. Port 3 Alternate-Function Pins
Pin No. Pin Name
V850ES/
JG3-H
V850ES/
JH3-H
Alternate-Function Pin Name I/O Remark
P30 25 37 TXDC0/SOF4/INTP07 I/O
P31 26 38 RXDC0/SIF4/INTP08 Input
P32 27 39 ASCKC0/SCKF4/TIAA00/TOAA00 I/O
P33 28 40 TIAA01/TOAA01/RTCDIV/RTCCL I/O
P34 29 41 TIAA10/TOAA10/TOAA1OFF/INTP09 I/O
P35 30 42 TIAA11/TOAA11/RTC1HZ I/O
P36 31 43 TXDC3/SCL00/CTXD0
Note
/UDMARQ0 I/O
P37 32 44 RXDC3/SDA00/CRXD0
Note
/UDMAAK0 I/O
Selectable as N-ch open-drain output
Note μ PD70F3770, 70F3771 only
Caution The P30 to P37 pins have hysteresis characteristics in the input mode of the alternate-function pin,
but do not have the hysteresis characteristics in the port mode.
(1) Port 3 register (P3)
Outputs 0.
Outputs 1.
P3n
0
1
Output data control (in output mode) (n = 0 to 7)
P3
After reset: 00H (output latch) R/W Address: FFFFF406H
P37 P36 P35 P34 P33 P32 P31 P30
76543210
(2) Port 3 mode register (PM3)
Output mode
Input mode
PM3n
0
1
I/O mode control (n = 0 to 7)
PM3
After reset: FFH R/W Address: FFFFF426H
PM37 PM36 PM35 PM34 PM33 PM32 PM31 PM30
76543210
(3) Port 3 mode control register (PMC3)