H8SLASH3028F datasheet(335/923 Pages) RENESAS

335 / 923 page

Rev. 2.00, 09/03, page 305 of 890

Table 8.24 Port B Pin Functions (Modes 6 and 7)

Pin Functions and Selection Method

Bit RE in SCR of SCI2, bit SMIF in SCMR, bit NDER15 in NDERB, and bit

PB7DDR select the pin function as follows.

SMIF

—

PB7DDR

—

NDER15

—

PB7/TP15/

RxD2

Pin function

PB7 input

PB7 output TP15 output RxD2 input RxD2 input

Bit TE in SCR of SCI2, bit SMIF in SCMR, bit NDER14 in NDERB, and bit

PB6DDR select the pin function as follows.

SMIF

—

PB6DDR

—

NDER14

—

PB6/TP14/

TxD2

Pin function

PB6 input

PB6 output TP14 output TxD2 output

TxD2

output*

Note: * Functions as the TxD2 output pin, but there are two states: one in which

the pin is driven, and another in which the pin is at high-impedance.

PB5/TP13/

SCK2

Bit C/

A in SMR of SCI2, bits CKE0 and CKE1 in SCR, bit NDER13 in NDERB,

and bit PB5DDR select the pin function as follows.

CKE1

—

CKE0

—

PB5DDR

—

NDER13

—

Pin function

PB5

input

PB5

output

TP13

output

SCK2

output

SCK2

output

SCK2

input

Bit NDER12 in NDERB and bit PB4DDR select the pin function as follows.

PB4DDR

NDER12

—

PB4/TP12

Pin function

PB4 input

PB4 output

TP12 output

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