LPC Microcontrollers中的主题 LPC176x Part Identification Number and flash memory sizes https://community.nxp.com/t5/LPC-Microcontrollers/LPC176x-Part-Identification-Number-and-flash-memory-sizes/m-p/522343#M4979 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by tepytec on Wed Dec 04 03:46:00 MST 2013</STRONG><BR /><SPAN>LPC176x/5x MCUs have this PIN which you can read with IAP commands. Like 0x26013F33 on LPC1766.</SPAN><BR /><BR /><SPAN>Manual lists what model matches which number. Basically the number seems to indicate what chip is capable of.</SPAN><BR /><BR /><SPAN>Lowest 3 bits for example seem to indicate the flash memory size:</SPAN><BR /><SPAN>000 = 32k</SPAN><BR /><SPAN>001 = 64k</SPAN><BR /><SPAN>010 = 128k</SPAN><BR /><SPAN>011 = 256k</SPAN><BR /><SPAN>100 = ?</SPAN><BR /><SPAN>101 = ?</SPAN><BR /><SPAN>110 = ?</SPAN><BR /><SPAN>111 = 512k</SPAN><BR /><BR /><SPAN>Is there a reference somewhere which would tell what each bit of Part Identification Number mean?</SPAN><BR /><BR /><SPAN>---</SPAN><BR /><BR /><SPAN>Here is what I have deciphered so far:</SPAN><BR /><BR /><SPAN>2:0 Flash size</SPAN><BR /><SPAN>3 Only set on LPC1751 where CRP is fixed</SPAN><BR /><SPAN>5:4 CPU ram size [?, 8k, 16k, 32k]</SPAN><BR /><SPAN>7:6 Unused? Always 0.</SPAN><BR /><SPAN>8 USB y/n or USB Device?</SPAN><BR /><SPAN>9 USB Host/OTG or DAC?</SPAN><BR /><SPAN>10 USB Host/OTG or DAC?</SPAN><BR /><SPAN>11 Ethernet </SPAN><BR /><SPAN>12 USB y/n?</SPAN><BR /><SPAN>13 sram1 (16k) y/n</SPAN><BR /><SPAN>15:14 Unused? Always 0.</SPAN><BR /><SPAN>16 sram0 (16k) y/n</SPAN><BR /><SPAN>19:17 Unused? Always 0.</SPAN><BR /><SPAN>20 Max clock freq [100MHz, 120MHz]</SPAN><BR /><SPAN>21:23 Unused? Always 0.</SPAN><BR /><SPAN>24:31 Model: 0x25 = LPC175x,&nbsp; 0x26 = LPC176x</SPAN><BR /><BR /><SPAN>I'm not sure about these. I think there should also be CAN support there also somewhere.</SPAN><BR /></BODY></HTML> Wed, 15 Jun 2016 17:54:51 GMT lpcware 2016-06-15T17:54:51Z LPC176x Part Identification Number and flash memory sizes https://community.nxp.com/t5/LPC-Microcontrollers/LPC176x-Part-Identification-Number-and-flash-memory-sizes/m-p/522343#M4979 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by tepytec on Wed Dec 04 03:46:00 MST 2013</STRONG><BR /><SPAN>LPC176x/5x MCUs have this PIN which you can read with IAP commands. Like 0x26013F33 on LPC1766.</SPAN><BR /><BR /><SPAN>Manual lists what model matches which number. Basically the number seems to indicate what chip is capable of.</SPAN><BR /><BR /><SPAN>Lowest 3 bits for example seem to indicate the flash memory size:</SPAN><BR /><SPAN>000 = 32k</SPAN><BR /><SPAN>001 = 64k</SPAN><BR /><SPAN>010 = 128k</SPAN><BR /><SPAN>011 = 256k</SPAN><BR /><SPAN>100 = ?</SPAN><BR /><SPAN>101 = ?</SPAN><BR /><SPAN>110 = ?</SPAN><BR /><SPAN>111 = 512k</SPAN><BR /><BR /><SPAN>Is there a reference somewhere which would tell what each bit of Part Identification Number mean?</SPAN><BR /><BR /><SPAN>---</SPAN><BR /><BR /><SPAN>Here is what I have deciphered so far:</SPAN><BR /><BR /><SPAN>2:0 Flash size</SPAN><BR /><SPAN>3 Only set on LPC1751 where CRP is fixed</SPAN><BR /><SPAN>5:4 CPU ram size [?, 8k, 16k, 32k]</SPAN><BR /><SPAN>7:6 Unused? Always 0.</SPAN><BR /><SPAN>8 USB y/n or USB Device?</SPAN><BR /><SPAN>9 USB Host/OTG or DAC?</SPAN><BR /><SPAN>10 USB Host/OTG or DAC?</SPAN><BR /><SPAN>11 Ethernet </SPAN><BR /><SPAN>12 USB y/n?</SPAN><BR /><SPAN>13 sram1 (16k) y/n</SPAN><BR /><SPAN>15:14 Unused? Always 0.</SPAN><BR /><SPAN>16 sram0 (16k) y/n</SPAN><BR /><SPAN>19:17 Unused? Always 0.</SPAN><BR /><SPAN>20 Max clock freq [100MHz, 120MHz]</SPAN><BR /><SPAN>21:23 Unused? Always 0.</SPAN><BR /><SPAN>24:31 Model: 0x25 = LPC175x,&nbsp; 0x26 = LPC176x</SPAN><BR /><BR /><SPAN>I'm not sure about these. I think there should also be CAN support there also somewhere.</SPAN><BR /></BODY></HTML> Wed, 15 Jun 2016 17:54:51 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC176x-Part-Identification-Number-and-flash-memory-sizes/m-p/522343#M4979 lpcware 2016-06-15T17:54:51Z