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MB91F314 Datasheet(PDF) 21 Page - fujitsu semiconductor

Part # MB91F314
Description  32-bit Microcontroller
PDF  73 Pages
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Manufacturer  FUJITSU [fujitsu semiconductor]
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Logo FUJITSU - fujitsu semiconductor

MB91F314 Datasheet(HTML) 21 Page - fujitsu semiconductor

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MB91314A Series
21
■ RESTRICTIONS
1) Clock control block
Take the oscillation stabilization wait time during “L” level input to the INIT pin.
2) Bit Search Module
The bit search data register for 0-detection (BSD0), and bit search data register for 1-detection (BSD1), and
bit search data register for change point detection (BSDC) are only word-accessible.
3) I/O port
Ports are accessed only in bytes.
4) Low Power Consumption Mode
• To place the device in standby mode, use the synchronous standby mode (set with bit 8 (SYNCS bit) of the
timebase counter control register, TBCR) and be sure to use the following sequence:
(ldi
#value_of_standby, r0)
(ldi
#_STCR, r12)
stb
r0, @r12
// set STOP/SLEEP bit
ldub
@r12, r0
// Must read STCR
ldub
@r12, r0
// after reading, go into standby mode
nop
// Must insert NOP *5
nop
nop
nop
nop
• Please do not do the following when the monitor debugger is used.
• Setting of the break point to the above-mentioned instruction row.
• Execution of the step for the above-mentioned instruction row.



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