Seiko Cal. V17 User Manual download pdf (Page 6)

2. Connection Example with Standard CPU

2 EPSON S1R72V17 CPU Connection Guide

(Rev. 1.0)

2. Connection Example with Standard CPU

This section illustrates a typical connection with a standard CPU.

1) 16-bit bus, Strobe mode connection example

Set CPU_Config register (0x075h address) BusMode bit to “0” and Bus8x16 bit to “0.”

16bit Strobe mode

CPU S1R72V17

IOVDD CVDD

Address[8:1] CA[8:1]

XBEL(CA[0])

DATA[15:0] CD[15:0]

XCS XCS

XRD XRD

XWRH XWRH(XBEH)

XWRL XWRL(XWR)

XDREQ

DREQ

XDACK

DACK

XINT

INT

1: Open

2: Fixed at High or Low

1.65 V to 3.6 V

Fig. 2-1 16-bit bus, Strobe mode connection example

1 2 3 4 5 6 7 8 9 10 11 ... 23 24

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Seiko Cal. V17 User Manual Page 6