User’s Manual U17716EJ2V0UD
22
CHAPTER 2 PIN FUNCTIONS
2.1
List of Pin Functions
The names and functions of the pins in the V850ES/IE2 are listed below. These pins can be divided into port pins
and non-port pins according to their function.
There are two power supplies for the I/O buffer of a pin: power supply for A/D converter (AVDD0 and AVDD1) and
power supply for external pin (EVDD). The relationship between each power supply and the pins is shown below.
Table 2-1. I/O Buffer Power Supplies for Each Pin
Power Supply
Corresponding Pins
AVDD0, AVDD1
ANI00 to ANI03, ANI10 to ANI13
EVDD
Ports 0 to 4, port DL, RESET
(1) Port pins
(1/2)
Pin Name
Pin No.
I/O
Function
Alternate Function
P00
17
INTP0/TOQH0OFF
P01
16
INTP1/TOQ1OFF
P02
15
INTP2/TOP2OFF
P03
14
INTP3/TOP3OFF
P04
13
INTP4/ADTRG0
P05
12
INTP5/ADTRG1
P06
11
I/O
Port 0
7-bit I/O port
Input data read/output data write is enabled in 1-bit units.
Use of an on-chip pull-up resistor can be specified in 1-bit
units (the on-chip pull-up resistor can be connected only in
the input mode of the port mode and when the alternate
function of the pin is used).
INTP6
P10
24
TOQH01/TIQ01/TOQ01
P11
23
TIQ02/TOQ02
P12
22
TOQH02/TIQ03/TOQ03
P13
21
TIQ00
P14
20
TOQH03/EVTQ0
P16
(CLMER)
Note
19
TOQ00 (CLMER)
Note/TIP20
P17
18
I/O
Port 1
7-bit I/O port
Input data read/output data write is enabled in 1-bit units.
Use of an on-chip pull-up resistor can be specified in 1-bit
units (the on-chip pull-up resistor can be connected only in
the input mode of the port mode, when the input mode of
alternate function of the pin is used, and when TOP21 and
TOQH01 to TOQH03 pins, which function as output pins
when their alternate function is used, go into a high-
impedance state).
TOP21/TIP21
Note
The CLMER signal is enabled only when P16 is specified as an output port or the output function of
TOQ00. When an error (oscillator stop) is detected by the clock monitor, a low level is forcibly output.
Low-level output is released by reset signal. For details, see Table 4-5 Alternate-Function Pins of Port
1.