IRMCF341

8

4 Input/Output of IRMCF341

All I/O signals of IRMCF341 are shown in Figure 4. All I/O pins are 3.3V logic interface except

A/D interface pins.

PWMUH

PWMUL

PWMVH

PWMVL

PWMWH

PWMWL

GATEKILL

IFB+

IFB-

IFBO

AIN0

AIN1

PWM gate signal

Interface

A/D Interface

Discrete I/O

JTAG port

UART

Interface

XTAL0

XTAL1

Crystal

D/A Interface

(PWM output)

RESET

System Reset

AIN2

AIN3

AVDD (1.8V)

AVSS

CMEXT

VDD1 (3.3V)

VDD2 (1.8V)

VSS

Digital power/

ground

TSTMOD

Test Mode

(must be tied to VSS)

PLLVDD (1.8V)

PLLVSS

PLL power/

ground

P1.2/TXD

P1.1/RXD

SDA/CS0

SCL/SO-SI

P1.4/CAP

P1.0/T2

P1.5

P1.6

P1.7

P2.0/NMI

P1.3/SYNC/SCK

P3.0/INT2/CS1

P2.1

P2.2

P2.3

P2.4

P2.5

P3.2/INT0

P3.3/INT1

P3.5/T1

I2C

Interface

P5.3/TDI

TCK

P5.1/TMS

P5.2/TDO

P2.6/AOPWM0

P2.7/AOPWM1

P3.1/AOPWM2

AIN4

AIN5

AIN6

AREF

Analog power/

ground

Figure 4.

Input/Output of IRMCF341

4.1

8051 Peripheral Interface Group

UART Interface

TXD

Output, Transmit data from IRMCF341

RXD

Input, Receive data to IRMCF341

Discrete I/O Interface

P1.0/T2

Input/output port 1.0, can be configured as Timer/Counter 2 input

P1.1/RXD

Input/output port 1.1, can be configured as RXD input

P1.2/TXD

Input/output port 1.2, can be configured as TXD output