参数资料
型号: M38030F8L-XXXWG
厂商: Renesas Technology Corp.
英文描述: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
中文描述: 单芯片8位CMOS微机
文件页数: 91/119页
文件大小: 1575K
代理商: M38030F8L-XXXWG
Rev.1.00
Apr 2, 2007
Page 73 of 117
REJ03B0212-0100
3803 Group (Spec.L)
<Notes on CPU Rewrite Mode>
Take the notes described below when rewriting the flash memory
in CPU rewrite mode.
(1) Operation speed
During CPU rewrite mode, set the system clock
φ to 4.0 MHz or
less using the clock division ratio selection bits (bits 6 and 7 of
address 003B16).
(2) Instructions inhibited against use
The instructions which refer to the internal data of the flash
memory cannot be used during CPU rewrite mode.
(3) Interrupts
The interrupts cannot be used during CPU rewrite mode because
they refer to the internal data of the flash memory.
(4) Watchdog timer
If the watchdog timer has been already activated, internal reset
due to an underflow will not occur because the watchdog timer is
surely cleared during program or erase.
(5) Reset
Reset is always valid. The MCU is activated using the boot mode
at release of reset in the condition of CNVSS = “H”, so that the
program will begin at the address which is stored in addresses
FFFC16 and FFFD16 of the boot ROM area.
相关PDF资料
PDF描述
M381-L-109-5121LF 9 CONTACT(S), MALE, STRAIGHT TWO PART BOARD CONNECTOR, SOLDER
M381-L-109-5221LF 9 CONTACT(S), MALE, STRAIGHT TWO PART BOARD CONNECTOR, SOLDER
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M381-L-110-5221LF 10 CONTACT(S), MALE, STRAIGHT TWO PART BOARD CONNECTOR, SOLDER
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