Section 17 Flash Memory
Rev. 3.00 Sep. 27, 2007 Page 581 of 758
REJ09B0243-0300
17.3 Input/Output
Pins
Flash memory is controlled by the pins as shown in table 17.3.
Table 17.3 Pin Configuration
Pin Name
Symbol
I/O
Function
Power-on reset
RES
Input Reset
Flash programming
enable
FWE
Input
Hardware protection when
programming flash memory
Mode 1
MD1
Input
Sets operating mode of this LSI
Transmit data
TXD1 (PA4)
Output
Serial transmit data output (used in
boot mode)
Receive data
RXD1 (PA3)
Input
Serial receive data input (used in boot
mode)
17.4 Register
Descriptions
17.4.1 Registers
The registers/parameters, which control flash memory when the on-chip flash memory is valid are
shown in table 17.4.
There are several operating modes for accessing flash memory, for example, read mode/program
mode. The correspondence of operating modes and registers/parameters for use is shown in table
17.5.
Summary of Contents for SH7124 R5F7124
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Page 36: ...Section 1 Overview Rev 3 00 Sep 27 2007 Page 16 of 758 REJ09B0243 0300 ...
Page 68: ...Section 2 CPU Rev 3 00 Sep 27 2007 Page 48 of 758 REJ09B0243 0300 ...
Page 108: ...Section 5 Exception Handling Rev 3 00 Sep 27 2007 Page 88 of 758 REJ09B0243 0300 ...
Page 166: ...Section 7 User Break Controller UBC Rev 3 00 Sep 27 2007 Page 146 of 758 REJ09B0243 0300 ...
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