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HD64F2398F20T Datasheet(PDF) 10 Page - Renesas Technology Corp |
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HD64F2398F20T Datasheet(HTML) 10 Page - Renesas Technology Corp |
10 / 1047 page Rev.6.00 Oct.28.2004 page vi of xxiv REJ09B0138-0600H Item Page Revision (See Manual for Details) 19.18.2 Program-Verify Mode Figure 19-48 Program/Program- Verify Flowchart 639 Figure 19-48 amended, note *6 added Start End of programming End sub Set SWE bit in FLMCR1 Wait (x) µs n = 1 m = 0 Sub-routine-call See note 7 regarding pulse width switching. Note: 7 Write Pulse Width Start of programming Sub-routine write pulse Set PSU bit in FLMCR1 Enable WDT Set P bit in FLMCR1 Wait (y) µs Clear P bit in FLMCR1 Wait (z1) µs or (z2) µs or (z3) µs Clear PSU bit in FLMCR1 Wait ( α) µs Disable WDT Wait ( β) µs Write pulse application subroutine NG NG NG NG NG NG OK OK OK OK OK Wait ( γ) µs Wait ( ε) µs *2 *4 *5*6 *6 *6 *6 *1 Set PV bit in FLMCR1 H'FF dummy write to verify address Read verify data Additional program data computation Transfer additional program data to additional program data area Read data = verify data? *4 *1 *6 *6 *6 *6 *6 *6 *6 *6 *4 *3 Reprogram data computation Clear PV bit in FLMCR1 Clear SWE bit in FLMCR1 m = 1 128-byte data verification completed? m = 0? 6 ≥ n ? 6 ≥ n ? Increment address Programming failure OK Clear SWE bit in FLMCR1 n ≥ N? Write 128-byte data in RAM reprogram data area consecutively to flash memory Write pulse (z1) µs or (z2) µs Perform programming in the erased state. Do not perform additional programming on previously programmed addresses. RAM Program data area (128 bytes) Reprogram data area (128 bytes) Additional program data area (128 bytes) Store 128-byte program data in program data area and reprogram data area Number of Writes (n) 1 2 3 4 5 6 7 8 9 10 11 12 13 . . . 998 999 1000 Write Time (z) µs z1 z1 z1 z1 z1 z1 z2 z2 z2 z2 z2 z2 z2 . . . z2 z2 z2 Transfer reprogram data to reprogram data area n ← n + 1 Note: Use a (z3) µs write pulse for additional programming. Sequentially write 128-byte data in additional program data area in RAM to flash memory Write Pulse (z3 µs additional write pulse) Wait ( θ) µs Wait ( η) µs Wait ( θ) µs 22.3.6 Flash Memory Characteristics Table 22-21 Flash Memory Characteristics (HD64F2398F20, HD64F2398TE20) 724 Table 22-21 title amended Table 22-22 Flash Memory Characteristics (HD64F2398F20T, HD64F2398TE20T) 726 Table 22-22 added |
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