SH7721 datasheet(818/1524 Pages) RENESAS

818 / 1524 page

Section 23

USB Pin Multiplex Controller

Rev. 3.00 Jan. 18, 2008 Page 756 of 1458

REJ09B0033-0300

23.2

Input/Output Pins

USB pin multiplexer controller has pins that are shown in tables 23.1, 23.2, and 23.3

Table 23.1

Pin Configuration (Digital Transceiver Signal)

Name

Pin Name

I/O

Description

RCV pin

USB1d_RCV

Input

Input pin for receive data from differential receiver

DPLS pin

USB1d_DPLS

Input

Input pin for D

+ signal from receiver

DMNS pin

USB1d_DMNS

Input

Input pin for D

− signal from receiver

TXDPLS pin

USB1d_TXDPLS

Output

+ transmit output pin

TXENL pin

USB1d_TXENL

Output

Driver output enable pin

SUSPEND pin USB1d_SUSPEND

Output

Transceiver suspend state output pin

SPEED pin

USB1d_SPEED

Output

Transceiver speed control pin

TXSE0 pin

USB1d_TXSE0

Output

SE0 state output pin

Note:

The pins shown in table 23.1 are used for connecting an external USB transceiver, and

cannot be used when the on-chip USB transceiver is connected.

Table 23.2

Pin Configuration (Analog Transceiver Signal)

Name

Pin Name

I/O

Description

1P pin

USB1_P

I/O

D+ port1 transceiver pin

1M pin

USB1_M

I/O

D– port1 transceiver pin

2P pin

USB2_P

I/O

D+ port2 transceiver pin

2M pin

USB2_M

I/O

D– port2 transceiver pin

Note:

The pins shown in table 23.2 can be used as two ports USB host controller pins, or one port

USB host controller pins and one port USB function controller pins. Make these pins open,

when they are not used.

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