SH7616 datasheet(44/935 Pages) RENESAS

44 / 935 page

Section 1 Overview

Rev. 2.00 Mar 09, 2006 page 18 of 906

REJ09B0292-0200

Type

Symbol

I/O

Name

Function

Bus control

A24–A0

Output

Address bus

Address output

D31–D0

I/O

Data bus

Data input/output

H-UDI

TCK

Input

Test clock

Test clock input

TMS

Input

Test mode

select

Test mode select input signal

TDI

Input

Test data input

Serial data input

TDO

Output

Test data output Serial data output

TRST

Input

Test reset

Test reset input signal

ASEMODE* Input

ASE mode input ASE mode/user mode select signal

Ethernet

controller

TX-CLK

Input

Transmitter

clock

TX-EN, ETXD0–3, TX-ER timing

reference signal

(EtherC)

RX-CLK

Input

Receive clock

RX-DV, ERXD0–3, RX-ER timing

reference signal

TX-EN

Output

Transmit enable

Signal indicating that transmit data on

ETXD0–3 is ready

ETXD0–3

Output

Transmit data

0–3

4-bit receive data

TX-ER

Output

Transmit error

Signal sending error status to another

port

RX-DV

Input

Receive data

enable

Indicates that enable receive data on

ERXD0–3 exist

ERXD0–3

Input

Receive data

0–3

4-bit receive data

RX-ER

Input

Receive error

Reports error state that occurred during

transfer of frame data

CRS

Input

Carrier sense

Carrier detection notification signal

COL

Input

Collision

Collision detection signal

MDC

Output

Management

data clock

Reference clock signal for information

transfer by MDIO

MDIO

I/O

Management

data input/output

Bidirectional signal for exchanging

management information between STA

and PHY

Note: * When carrying out debugging using the E10A emulator, this pin is used for mode switching.

It should be connected to VSS when using the E10A emulator and connected to VCC when

using a normal user system. When a boundary scan test is performed with the H-UDI, user

mode must be used. A boundary scan test cannot be performed in ASE mode.

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