H8SLASH3028 datasheet(7/923 Pages) RENESAS

部件名	H8/3028

功能描述	Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

PDF	923 Pages

Scroll/Zoom	100%

制造商	RENESAS [Renesas Technology Corp]

网页	http://www.renesas.com

标志

7 / 923 page

Rev. 2.00, 09/03, page vii of xxx

Main Revisions and Additions in this Edition

Item

Page

Revision (See Manual for Details)

1.2 Block Diagram

Figure 1.1 Block

Diagram

Figure amended

EXTAL

XTAL

STBY

RES

NMI

Interrupt controller

φ/P67

LWR/P66

HWR/P65

RD/P64

AS/P63

BACK/P62

BREQ/P61

WAIT/P60

RESO/FWE*

ROM

(mask ROM or

flash memory)

Table amended

System

control

RES

Input

Reset input: When driven low,

this pin resets the chip

1.3.2 Pin Functions

Table 1.2 Pin

Functions

RESO

Output

Reset output (mask ROM

version): Outputs the reset signal

generated by the watchdog timer

to an external device

FWE

Input

Write enable signal (F-ZTAT

version): Flash memory write

control signal

7.4.8 DMAC Bus

Cycle

Figure 7.13 DMA

Transfer Bus Timing

(Example)

229

Figure amended

HWR

LWR

CPU cycle

DMAC cycle (1 word transfer)

CPU cycle

Source

address

Destination address

Address

bus

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