Panasonic MN103001G/F01K User Manual

Page 173

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background image

Bus Controller (BC)

8-59

(a)

Read Timing

(b)

Write Timing

Fig. 8-13-29

Access Timing on a 8-bit Bus with Handshaking in Synchronous Mode and in Address/

Data Multiplex Mode (MCLK = SYSCLK)

For details on the various timing settings, refer to the description of the memory control register in section 8.6,

“Description of Registers.”

MCLK

SYSCLK

AS

CS2

ASA

ADE

RWSEL

A23* to 16

ADM15 to 0

RE

WE0

ASN

ASA

ADE

ASN

EA

REN

Read high-order side

Read low-order side

DK

DW

BCE

BCE

EA

REN

DW

DK detection start

DK detection start

A[0]=0

A[0]=1

data in

data in

“H”

A[0]=0

A[0]=1

: Undefined

Consumed internally
by the BC

Consumed internally
by the BC

: A23 also serves as CS3

*

: Undefined or Hi-Z

“0” (“L”)

“0” (“L”)

MCLK

SYSCLK

AS

CS2

ASA

ADE

RWSEL

A23* to 16

ADM15 to 0

RE

WE0

ASN

ASA

ADE

ASN

EA

WEN

Write high-order side

Write low-order side

DK

DW

BCE

Consumed internally
by the BC

BCE

EA

WEN

DW

DK detection start

“H”

A[0]=0

“0” (“L”)

data out

A[0]=0

A[0]=1

A[0]=1

data out

: Undefined

: A23 also serves as CS3

*

: Undefined or Hi-Z

“0” (“L”)

Consumed internally
by the BC

DK detection start

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