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7641 Datasheet(PDF) 97 Page - Renesas Technology Corp

Part # 7641
Description  8-BIT SINGLE-CHIP MICROCOMPUTER
PDF  385 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7641 Datasheet(HTML) 97 Page - Renesas Technology Corp

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Rev.2.00
Aug 28, 2006
page 80 of 113
7641 Group
REJ09B0336-0200
HARDWARE
FUNCTIONAL DESCRIPTION
Fig. 76 STA ($ zz), Y instruction sequence when EDMA enabled
φ
SYNCOUT
RD
WR
Address
Data
PC +1
PC
PC + 2
Op code
EDMA
BAL
BAL, 00
BAL+1, 00
ADL + Y,
ADH
ADL + Y,
ADH + C
ADL
ADH
InvalidData
Next
Op code
φ
SYNCOUT
RD
WR
Address
Data
PC +1
PC
PC + 2
Op code
EDMA
BAL
BAL, 00
BAL+1, 00
ADL + Y,
ADH
ADL + Y,
ADH + C
ADL
ADH
Invalid
Data
Next
Op code
Fig. 77 LDA ($ zz), Y instruction sequence when EDMA enabled and T flag = “0”
Fig. 78 LDA ($ zz), Y instruction sequence when EDMA enabled and T flag = “1”
φ
SYNCOUT
RD
WR
Address
Data
PC +1
PC
X, 00
Op code
EDMA
BAL
BAL, 00
BAL+1, 00
ADL + Y,
ADH
ADL + Y,
ADH + C
ADL
ADH
Invalid
Data
Next
Op code
PC + 2
Invalid
Data



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