TMPR4938 datasheet(60/716 Pages) TOSHIBA

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Chapter 3 Signals

3-6

3.1.6

Serial I/O Interface Signals

Table 3.1.6 Serial I/O Interface Signals

Signal Name

Type

Description

Initial State

CTS [1:0]*

Input

SIO Clear to Send

CTS* signals.

CTS[1]* share pins with other function signals (refer to Section “3.3 Pin multiplex”).

Input

RTS [1:0]*

Output

SIO Request to Send

RTS* signals.

RTS[1]* share pins with other function signals (refer to Section “3.3 Pin multiplex”).

All Low

RXD[1:0]

Input

SIO Receive Data

Serial data input signals.

RXD[1] share pins with other function signals (refer to Section “3.3 Pin multiplex”).

Input

TXD[1:0]

3-state

Output

SIO Transmit Data

Serial data output signals.

TXD[1] share pins with other function signals (refer to Section “3.3 Pin multiplex”).

All High

SCLK

Input

External Serial Clock

SIO clock input signal. SIO0 and SIO1 share this signal.

Input

3.1.7

Timer Interface Signals

Table 3.1.7 Timer Interface Signals

Signal Name

Type

Description

Initial State

TIMER[1:0]

Output

Timer Output

Timer output signals.

All High

TCLK

Input

External Timer Clock

Timer input clock signal. TMR0, TMR1, and TMR2 share this signal.

Input

WDRST*

OD output

Watchdog Reset

Watchdog reset output signal.

Hi-Z

3.1.8

Parallel I/O Interface Signals

Table 3.1.8 Parallel I/O Interface Signals

Signal Name

Type

Description

Initial State

PIO[15:8]

Input/output

PIO Ports[15:8]

Parallel I/O signals.

PIO[15:8] share pins with other function signals (refer to Section “3.3 Pin multiplex”).

Input

PIO[7:0]

Input/output

PIO Ports[7:0]

Parallel I/O signals.

PIO[7:0] share pins with other function signals (refer to Section “3.3 Pin multiplex”).

Input

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