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SPMCK16Z4MPV16 датащи(PDF) 402 Page - Freescale Semiconductor, Inc |
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SPMCK16Z4MPV16 датащи(HTML) 402 Page - Freescale Semiconductor, Inc |
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402 / 500 page ![]() REGISTER SUMMARY M68HC16 Z SERIES D-28 USER’S MANUAL D.4.4 ROM Bootstrap Words Typically, CPU16 reset vectors reside in non-volatile memory and are fetched when the CPU16 comes out of reset. These four words can be used as reset vectors with the contents specified at mask time. The content of these words cannot be changed. On generic (blank ROM) MC68HC16Z2 and MC68HC16Z3 devices, ROMBS[0:3] are masked to $0000. When the ROM on the MC68HC16Z2 and MC68HC16Z3 is masked with customer specific code, ROMBS[0:3] respond to system addresses $00000 to $00006 during the reset vector fetch if BOOT = 0. ROMBS0 — ROM Bootstrap Word 0 $YFF830 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 NOT USED ZK[3:0] SK[3:0] PK[3:0] ROMBS1 — ROM Bootstrap Word 1 $YFF832 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 PC[15:0] ROMBS2 — ROM Bootstrap Word 2 $YFF834 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 SP[15:0] ROMBS3 — ROM Bootstrap Word 3 $YFF836 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 IZ[15:0] Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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