TMPR4925XB datasheet(21/32 Pages) TOSHIBA

21 / 32 page

INTEGRATED CIRCUIT

TOSHIBA RISC PROCESSOR

TMPR4925XB

TENTATIVE

EJC-TMPR4925XB-21

26/Dec/01 Rev 0.1

TOSHIBA CORPORATION

SIO Interface

Signal Name

Type

Function

Initial State

CTS [1:0]*

Input

PU*1

SIO Clear to Send

CTS* signals.

The pins are shared with other functions.

PIO input

RTS [1:0]*

Output

PU*1

SIO Request to Send

RTS* signals.

The pins are shared with other functions.

PIO input

RXD[1:0]

Input

PU*1

SIO Receive Data

Serial data input signals.

The pins are shared with other functions.

PIO input

TXD[1:0]

3-state

Output

PU*1

SIO Transmit Data

Serial data output signals.

The pins are shared with other functions.

PIO input

SCLK

Input

External Serial Clock

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

The pin is shared with other functions.

PIO input

*1:

These signals are pulled up for channel 0 only. No pull-up resistor is provided for channel 1.

Timer Interface

Signal Name

Type

Function

Initial State

TIMER[1:0]

Output

Timer Output

Timer output signals.

The pins are shared with other functions.

PIO input

TCLK

Input

External Timer Clock

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

The pin is shared with other functions.

PIO input

PIO Interface

Signal Name

Type

Function

Initial State

PIO[31:20]

Input/out

put

PIO Ports[31:20]

Parallel I/O signals.

The pins are shared with other functions, including PC trace.

The boot configuration signal on the TDO pin determines whether the signals are

used for PC trace.

Selected

by TDO

H: PIO

input

L: Output

(PC trace

function)

PIO[19:0]

Input/out

put

PU*1

PIO Ports[19:0]

Parallel I/O signals.

The pins are shared with other functions.

Input

*1:

PIO[17:12] do not have pull-up resistors.

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