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HD64F2149YV 数据表(PDF) 180 Page - Renesas Technology Corp

部件名 HD64F2149YV
功能描述  Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2100 Series
PDF  1075 Pages
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制造商  RENESAS [Renesas Technology Corp]
网页  http://www.renesas.com
标志 RENESAS - Renesas Technology Corp

HD64F2149YV 数据表(HTML) 180 Page - Renesas Technology Corp

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Section 6 Bus Controller
Rev. 3.00 Jan 18, 2006 page 152 of 1044
REJ09B0280-0300
8-Bit 3-State Access Space: Figure 6.6 shows the bus timing for an 8-bit 3-state access space.
When an 8-bit access space is accessed, the upper half (D15 to D8) of the data bus is used.
Wait states can be inserted.
Bus cycle
T1
T2
Address bus
φ
AS/IOS (IOSE = 1)
AS/IOS (IOSE = 0)
RD
D15 to D8
Valid
D7 to D0
Invalid
Read
HWR
D15 to D8
Valid
Write
T3
Figure 6.6 Bus Timing for 8-Bit 3-State Access Space



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