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
XDREQ
*
1
XDACK
XDACK
*
2
XINT
XINT
<When DMA is not used>
*
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