Seiko Cal. V17 User Manual download pdf (Page 21)

5. Connection Example with FreeScale iMX21

S1R72V17 CPU Connection Guide EPSON 17

(Rev. 1.0)

• Bus cycle waveform

<Read cycle>

Bus c

y

cle Read access

HCL

K

bus clock

A

[

8:1

]

(

O

)

A

0

CS1　

(

O

)

OE

　

(

O

)

<Write cycle>

Bus c

y

cle Write access

HCL

K

bus clock

A

[

8:1

]

(

O

)

A

0

CS1　

(

O

)

RW　

(

O

)

EB3

,

2

(

O

)

CSA

(

0HCLK

)

CSN (0HCLK)

OEA (2HCLK)

OEN (1HCLK)

WSC (8HCLK)

CSA

(

0HCLK

)

CSN (0HCLK)

RWA (2HCLK)

RWN (1HCLK)

WSC (8HCLK)

WEA (0HCLK)

WEN (0HCLK)

Fig. 5-3 iMX21 bus cycle waveform

1 2 ... 16 17 18 19 20 21 22 23 24

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