HD64F2145 datasheet(241/829 Pages) RENESAS

241 / 829 page

Rev. 2.0, 08/02, page 201 of 788

• PB2/D2/:8(5*2/&66

The pin function is switched as shown below according to the combination of the operating

mode, the HI12E and CS3E bits in SYSCR2, the ABW bit in WSCR, and the PB2DDR bit.

Operating

Mode

Mode 1 and Modes 2, 3 (EXPE = 1)

Modes 2, 3 (EXPE = 0)

HI12E

—

CS3E

—

Either cleared to 0

ABW

—

PB2DDR

—

PB2

input pin

PB2

output pin

PB2

input pin

PB2

output pin

&66

input pin

Pin Function

D2 I/O pin

:8(5 input pin*1

Notes: 1. Except when used as a data bus pin, this pin can always be used as the

:8(5 input

pin. The

&66 input pin can only be used in mode 2 or 3 (EXPE = 0).

2. Not supported by the H8S/2148B.

• PB1/D1/:8(4/HIRQ4/LSCI*4

The pin function is switched as shown below according to the combination of the operating

mode, the HI12E and CS4E bits in SYSCR2, the LSCIE bits in HICR0 of host interface (LPC),

the ABW bit in WSCR, and the PB1DDR bit.

Operating

Mode

Modes 1, 2, 3 (EXPE = 1)

Mode 2, 3 (EXPE = 0)

LSCIE

HI12E

—

CS4E

—

Either cleared to 0

1—

ABW

—

PB1DDR

—

PB1

input pin

PB1

output pin

HIRQ4

output pin

LSCI*

output pin

PB1

input pin

PB1

output pin

LSCI input pin*

Function

D1 I/O pin

:8(4 input pin*2*4

Notes: 1. When bit LSCIE is set to 1 in HICR0, bits HI12E and PB1DDR should be cleared to 0.

2. Except when used as a data bus pin, this pin can always be used as the

:8(4 input

pin. The HIRQ4 output pin and LSCI I/O pin can only be used in mode 2 or 3 (EXPE =

0).

3. In mode 1, 2, 3 (EXPE = 1), clear the LSCIE bit to 0.

4. Not supported by the H8S/2148B.

HD64F2145 Datasheet(PDF) 241 Page - Renesas Technology Corp

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