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SH7101 Datasheet(PDF) 481 Page - Renesas Technology Corp

Part # SH7101
Description  32-Bit RISC Microcomputer
PDF  560 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

SH7101 Datasheet(HTML) 481 Page - Renesas Technology Corp

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Section 17 RAM
Rev.1.00 Sep. 18, 2008 Page 447 of 522
REJ09B0069-0100
Section 17 RAM
This LSI has an on-chip high-speed static RAM. The on-chip RAM is connected to the CPU via a
32-bit data bus, enabling 8, 16, or 32-bit width access to data in the on-chip RAM. Data in the on-
chip RAM can always be accessed in one cycle, providing high-speed access that makes this RAM
ideal for use as a program area, stack area, or data area. The contents of the on-chip RAM are
retained in both sleep and software standby modes.
The on-chip RAM can be enabled or disabled by means of the RAME bit in the system control
register (SYSCR). For details on SYSCR, refer to section 18.2.2, System Control Register
(SYSCR).
Product Type
Type of ROM
RAM Capacity
RAM Address
SH7108
Masked ROM
4 kbytes
H'FFFFF000 to
H'FFFFFFFF
17.1
Usage Note
• Module Standby Mode Setting
RAM can be enabled or disabled by the module standby control register. The initial value
enables RAM operation. RAM access is disabled by setting module standby mode. For details,
refer to section 18, Power-Down Modes.



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