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ST40RA 数据表(PDF) 19 Page - STMicroelectronics |
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ST40RA 数据表(HTML) 19 Page - STMicroelectronics |
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19 / 94 page  5 System configuration ST40RA 19/94 STMicroelectronics ADCS 7260755H 5.7 EMI pin to function relationship ST40RA EMI pin Peripheral SFlash SDRAM MPX MPX/EMPI EADDR[2:26] MEM_ADDRESS MEM_ADDRESS MEM_ADDRESS - - EADDR3 NOT_CS - - CLK CLK EADDR4 NOT_OE - - /CS /CS EADDR5 NOT_BE - - /FRAME /FRAME EADDR6 MEM_DATA - - /BS /BS EADDR7 (write) - - /WE /WE EADDR8 MEM_DATA - - I/O [31:0] I/O [31:0] EADDR9 (read) - - I/O [63:61] I/O [63:61] EDATA[0:31] MEM_DATA MEM_DATA MEM_DATA MEM_DATA[31:0] MEM_DATA[31:0] ECLKOUT - - SDRAMCLOCK - - ECLKEN - - CKEN - - EDQM0 NOT_BE0 NOT_BE0 NOT_MEMBE0 - - EDQM1 NOT_BE1 NOT_BE1 NOT_MEMBE1 - - EDQM2 NOT_BE2 NOT_BE2 NOT_MEMBE2 - - EDQM3 NOT_BE3 NOT_BE3 NOT_MEMBE3 - - NOTECS0 NOT_CS0 NOT_CS0 NOT_SDRAMCS0 NOT_CS0 NOTEMPICS0 NOTECS1 NOT_CS1 NOT_CS1 NOT_SDRAMCS1 NOT_CS1 NOTEMPICS1 NOTECS2 NOT_CS2 NOT_CS2 NOT_SDRAMCS2 NOT_CS2 NOTEMPICS2 NOTECS3 NOT_CS3 NOT_CS3 NOT_SDRAMCS3 NOT_CS3 NOTEMPICS3 NOTECS4 NOT_CS4 NOT_CS4 - NOT_CS4 NOTEMPICS4 NOTECS5 NOT_CS5 NOT_CS5 - NOT_CS5 NOTEMPICS5 NOTERAS - NOT_ADDRVALID NOT_MEMRAS NOT_BS NOT_BS NOTECAS NOT_OE NOT_OE NOT_MEMCAS NOT_FRAME NOT_FRAME EWAIT MEM_WAIT MEM_WAIT - MEM_WAIT MEM_WAIT NOTEWE READNOTWRITE READNOTWRITE READNOTWRITE READNOTWRITE READNOTWRITE EPENDINGa RFSH_PENDING or ACC_PENDING (master) ACC_PENDING only (slave) RFSH_PENDING or ACC_PENDING (master) ACC_PENDING only (slave) RFSH_PENDING or ACC_PENDING (master) ACC_PENDING only (slave) RFSH_PENDING or ACC_PENDING (master) ACC_PENDING only (slave) RFSH_PENDING or ACC_PENDING (master) ACC_PENDING only (slave) MCLKOUT - - - MPX clock MPXCLOCK NOTMREQ (slave) EMI_HOLD_REQ EMI_HOLD_REQ EMI_HOLD_REQ - - NOTMREQ (master) EMI_BUS_REQ EMI_BUS_REQ EMI_BUS_REQ MPX bus request MPX bus request NOTMACK (slave) EMI_HOLD_ACK EMI_HOLD_ACK EMI_HOLD_ACK - - Table 8: EMI pin functions |
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