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H8S/2225 数据表(PDF) 810 Page - Renesas Technology Corp

部件名 H8S/2225
功能描述  16-Bit Single-Chip Microcomputer H8S Family/H8S/2200 Series
PDF  1071 Pages
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制造商  RENESAS [Renesas Technology Corp]
网页  http://www.renesas.com
标志 RENESAS - Renesas Technology Corp

H8S/2225 数据表(HTML) 810 Page - Renesas Technology Corp

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Section 20 Flash Memory (F-ZTAT Version)
Rev. 5.00 Aug 08, 2006 page 724 of 982
REJ09B0054-0500
20.4
Input/Output Pins
The flash memory is controlled by means of the pins shown in table 20.2.
Table 20.2 Pin Configuration
Pin Name
I/O
Function
RES
Input
Reset
FWE
Input
Flash program/erase protection by hardware
MD2
Input
Sets this LSI’s operating mode
MD1
Input
Sets this LSI’s operating mode
MD0
Input
Sets this LSI’s operating mode
PF0
Input
Sets MCU operating mode in programmer mode
P16
Input
Sets MCU operating mode in programmer mode
P14
Input
Sets MCU operating mode in programmer mode
TxD*
Output
Serial transmit data output
RxD*
Input
Serial receive data input
Note:
* SCI_2 (TxD2, RxD2) is used for the H8S/2258, H8S/2239, H8S/2238B, and
H8S/2238R, and SCI_0 (TxD0, RxD0) for the H8S/2227.
20.5
Register Descriptions
The flash memory has the following registers.
• Flash memory control register 1 (FLMCR1)
• Flash memory control register 2 (FLMCR2)
• Erase block register 1 (EBR1)
• Erase block register 2 (EBR2)
• RAM emulation register (RAMER)
• Flash memory power control register (FLPWCR)
• Serial control register X (SCRX)
The registers described above are not present in the masked ROM version. If a register described
above is read in the masked ROM version, an undefined value will be returned.



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