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HD64F2149YV Datasheet(PDF) 102 Page - Renesas Technology Corp

Part # HD64F2149YV
Description  Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2100 Series
PDF  1075 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD64F2149YV Datasheet(HTML) 102 Page - Renesas Technology Corp

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Section 2 CPU
Rev. 3.00 Jan 18, 2006 page 74 of 1044
REJ09B0280-0300
2.9.3
On-Chip Supporting Module Access Timing (Internal I/O Register 1 and 2)
The on-chip supporting modules (Internal I/O Register 1 and 2) are accessed in two states. The
data bus is either 8 bits or 16 bits wide, depending on the particular internal I/O register being
accessed. Figure 2.19 shows the access timing for the on-chip supporting modules (Internal I/O
Register 1 and 2). Figure 2.20 shows the pin states.
Bus cycle
T1
T2
Address
Read data
Write data
Internal read signal
Internal data bus
Internal write signal
Internal data bus
Read
access
Write
access
Internal address bus
φ
Figure 2.19 On-Chip Supporting Module
(Internal I/O Register 1 and 2)Access Cycle



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