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| H8S2258 Datasheet, PDF (835/1071 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcomputer H8S Family/H8S/2200 Series | |||
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Section 20 Flash Memory (F-ZTAT Version)
Programming/
erasing
Wait time: tsswe possible
Wait time: 100 µs
Ï
VCC
tOSC1
min 0 µs
FWE
MD2 to MD0*1
RES
SWE1 bit
tMDS*3
SWE1 set
SWE1 cleared
Period during which flash memory access is prohibited
(tsswe: Wait time after setting SWE1 bit)*2
Period during which flash memory can be programmed
(Execution of program in flash memory prohibited, and data reads other than verify operations
prohibited)
Notes: 1. Except when switching modes, the level of the mode pins (MD2 to MD0) must be fixed until
power-off by pulling the pins up or down.
2. See sections 27.2.6, 27.3.6, 27.4.6, 27.5.6 and 27.6.6, Flash Memory Characteristics.
3. Mode programming setup time tMDS (min) = 200 ns.
Figure 20.15 Power-On/Off Timing (User Program Mode)
Rev. 5.00 Aug 08, 2006 page 749 of 982
REJ09B0054-0500
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