2程序ROM接囗 BCE AOE AWE WE BEAN+1: 1] AN:0] EMIFB FLASH BED[: 0 D[7:0 ARDY FARIGHT
远见品质 2.程序ROM—接口 EMIFB BCE1 AOE AWE BEA[N+1:1] BED[7:0] ARE ARDY CE OE WE A[N:0] D[7:0] VDD FLASH
2.程序ROM编程(1) SST39VFXX的软件命令序列 Command 1st Bus 2nd Bus BId Bus 4th Bus 5th Bus 6th Bus Sequence Write Cycle Write Cycle Write Cycle Write Cycle Write Cycle Write Cycle Addr Data Addr Data Addr Data Addr Data Addr Data Addr Data Byle Progran 5555H AAH 2AAAH 56H 5555H AOH Data Sector- Frase 5555HAAH 2AAAH 55H 5555H 80H 5555H AAH 55H SAx30H Chip.Er 5555H AAH 2AAAH55H5555H 80H 5555H AAH 2AAAH 55H 5555H10H Soltware ID Entry 5555H AAH2AAAH 55H SOH Sottware ID Exir XXH FOH Software ID Exit5555H AAH 55H5555H FCh FARIGHT
远见品质 2.程序ROM—编程（1） SST39VFxxx的软件命令序列:
2.程序ROM编程(2) Start Load data: AAH Address: 5555H Load data: 55H Address: 2AAAH Load data: AOH Address: 5555H ad By Address/Byte Wait for end of Program (TBP bit, or Toggle bit operation Program Completed FARIGHT
远见品质 2.程序ROM—编程（ 2 ）
2程序ROM自加载 Bot自加载 指令1低8bit 载后PC指针 指令1中8bi 指令1字32bt(或指令包) 指令1中8bi 指令1高8bit 指令2低8bit 片内程序RAM 片外程序ROM 或Fash FARIGHT
远见品质 2.程序ROM—自加载 指令 1 低 8bit 指令 1 中 8bit 指令 1 中 8bit 指令 1 高 8bit 指令 2 低 8bit · · · 指令 1 字 32bit（或指令包） · · · 片外程序 ROM 或 Flash 片内程序 RAM Boot 自加载 加载后 PC 指针