H8SSLASH2214 datasheet(73/936 Pages) RENESAS

73 / 936 page

Section 1 Overview

Rev.4.00 Sep. 18, 2008 Page 13 of 872

REJ09B0189-0400

Type

Symbol

I/O

Name and Function

System control

RES

Input

Reset input: When this pin is driven low, the chip enters the

power-on reset state.

MRES

Input

Manual reset: When this pin is driven low, the chip enters

the manual reset state.

STBY

Input

Standby: When this pin is driven low, a transition is made to

hardware standby mode.

BREQ

Input

Bus request: Used by an external bus master to issue a bus

request to the H8S/2214.

BACK

Output Bus request acknowledge: Indicates that the bus has been

released to an external bus master.

FWE

Input

Flash write enable: Enables/disables flash memory

programming.

Interrupts

NMI

Input

Nonmaskable interrupt: Requests a nonmaskable interrupt.

When this pin is not used, it should be fixed high.

IRQ7 to

IRQ0

Input

Interrupt request 7 to 0: These pins request a maskable

interrupt.

Address bus

A23 to

Output Address bus: These pins output an address.

Data bus

D15 to

I/O

Data bus: These pins constitute a bidirectional data bus.

Bus control

CS7 to

CS0

Output Chip select: Signals for selecting areas 7 to 0.

Output Address strobe: When this pin is low, it indicates that

address output on the address bus is enabled.

Output Read: When this pin is low, it indicates that the external

address space can be read.

HWR

Output High write: A strobe signal that writes to external space and

indicates that the upper half (D15 to D8) of the data bus is

enabled.

LWR

Output Low write: A strobe signal that writes to external space and

indicates that the lower half (D7 to D0) of the data bus is

enabled.

WAIT

Input

Wait: Requests insertion of a wait state in the bus cycle

when accessing external 3-state address space.

External

expansion

EXIRQ7 to

EXIRQ0

Input

External expansion interrupt request 7 to 0: Input pins for

interrupt requests from external modules.

EXMS

Output External expansion module select: Select signal for external

modules.

H8S/2214 数据表(PDF) 73 Page - Renesas Technology Corp

H8S/2214 数据表(HTML) 73 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表下载

链接网址

H8S/2214 数据表(PDF) 73 Page - Renesas Technology Corp

H8S/2214 数据表(HTML) 73 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表 下载

链接网址

数据表下载