H8SSLASH2214 datasheet(343/936 Pages) RENESAS

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Section 9 I/O Ports

Rev.4.00 Sep. 18, 2008 Page 283 of 872

REJ09B0189-0400

Port

Description

Pins

Modes 4 and 5

Mode 6

Mode 7

Port 7 • 8-bit I/O port

P77

P76/EXMSTP

P75/

EXMS

P74/

MRES/EXDTCE

P73/

TEND1/CS7

P72/

TEND0/CS6

P71/

DREQ1/CS5

P70/

DREQ0/CS4

8-bit I/O port also functioning as DMAC

I/O pins (

DREQ0, TEND0, DREQ1,

TEND1), bus control output pins (CS4

CS7), the manual reset input pin

(

MRES), and external module output

pins (EXMSTP,

EXMS, EXDTCE)

8-bit I/O port also

functioning as

DMAC I/O pins

(

DREQ0, TEND0,

DREQ1, TEND1),

the manual reset

input pins

(

MRES), and

external module

output pin

(EXMSTP,

EXMS,

EXDTCE)

Port 9 • 1-bit input

port

P96/DA0

1-bit input port also functioning as D/A analog output pin

(D/A0)

Port A • 4-bit I/O port

• On-chip

MOS input

pull-up

• Open-drain

output

capability

PA3/A19/SCK2

PA2/A18/RxD2

PA1/A17/TxD2

PA0/A16

I/O port also functioning as SCI

(channel 2) I/O pins (TxD2, RxD2,

SCK2) and address output (A16 to A19)

I/O port also

functioning as SCI

(channel 2) I/O

pins (TxD2, RxD2,

SCK2)

Port B • 8-bit I/O port

• On-chip

MOS input

pull-up

PB7/A15

PB6/A14

PB5/A13

PB4/A12

PB3/A11

PB2/A10

PB1/A9

PB0/A8

I/O port also functioning as address

output (A8 to A15)

I/O port

Port C • 8-bit I/O port

• On-chip

MOS input

pull-up

PC7/A7 to PC0/A0

Address output

(A0 to A7)

When DDR = 0:

Input port

When DDR = 1:

Address output

I/O port

Port D • 8-bit I/O port

• On-chip

MOS input

pull-up

PD7/D15 to PD0/D8

Data bus input/output

I/O port

Port E • 8-bit I/O port

• On-chip

MOS input

pull-up

PE7/D7 to PE0/D0

8-bit bus mode: I/O port

16-bit bus mode: Data bus input/output

I/O port

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