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LPC2294JBD144 数据表(PDF) 19 Page - NXP Semiconductors |
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LPC2294JBD144 数据表(HTML) 19 Page - NXP Semiconductors |
19 / 40 page Philips Semiconductors LPC2292/LPC2294 16/32-bit ARM microcontrollers with external memory interface Preliminary data Rev. 01 — 05 February 2004 19 of 40 9397 750 12748 © Koninklijke Philips Electronics N.V. 2004. All rights reserved. 5:4 Controls the use of the data bus and strobe pins: BOOT1:0 Pins P2.7:0 11 = P2.7:0 0x or 10 = D7:0 Pin P1.0 11 = P1.0 0x or 10 = CS0 Pin P1.1 11 = P1.1 0x or 10 = OE Pin P3.31 11 = P3.31 0x or 10 = BLS0 Pins P2.15:8 00 or 11 = P2.15:8 01 or 10 = D15:8 Pin P3.30 00 or 11 = P3.30 01 or 10 = BLS1 Pins P2.27:16 0x or 11 = P2.27:16 10 = D27:16 Pins P2.29:28 0x or 11 = P2.29:28 or reserved 10 = D29:28 Pins P2.31:30 0x or 11 = P2.31:30 or AIN5:4 10 = D31:30 Pins P3.29:28 0x or 11 = P3.29:28 or AIN6:7 10 = BLS2:3 6 If bits 5:4 are not 10, controls the use of pin P3.29: 0 enables P3.29, 1 enables AIN6. 1 7 If bits 5:4 are not 10, controls the use of pin P3.28: 0 enables P3.28, 1 enables AIN7. 1 8 Controls the use of pin P3.27: 0 enables P3.27, 1 enables WE. 0 10:9 Reserved. - 11 Controls the use of pin P3.26: 0 enables P3.26, 1 enables CS1. 0 12 Reserved. - 13 If bits 25:23 are not 111, controls the use of pin P3.23/A23/XCLK: 0 enables P3.23, 1 enables XCLK. 0 15:14 Controls the use of pin P3.25: 00 enables P3.25, 01 enables CS2, 10 and 11 are reserved values. 00 17:16 Controls the use of pin P3.24: 00 enables P3.24, 01 enables CS3, 10 and 11 are reserved values. 00 19:18 Reserved. - 20 If bits 5:4 are not 10, controls the use of pin P2.29:28: 0 enables P2.29:28, 1 is reserved 0 21 If bits 5:4 are not 10, controls the use of pin P2.30: 0 enables P2.30, 1 enables AIN4. 1 22 If bits 5:4 are not 10, controls the use of pin P2.31: 0 enables P2.31, 1 enables AIN5. 1 23 Controls whether P3.0/A0 is a port pin (0) or an address line (1). 1 if BOOT1:0=00 at RESET=0, 0 otherwise 24 Controls whether P3.1/A1 is a port pin (0) or an address line (1). BOOT1 during Reset 27:25 Controls the number of pins among P3.23/A23/XCLK and P3.22:2/A2.22:2 that are address lines: 000 if BOOT1:0=11 at Reset, 111 otherwise 000 = None 100 = A11:2 are address lines. 001 = A3:2 are address lines. 101 = A15:2 are address lines. 010 = A5:2 are address lines. 110 = A19:2 are address lines. 011 = A7:2 are address lines. 111 = A23:2 are address lines. 31:28 Reserved. Table 8: Pin function select register 2 (PINSEL2 - 0xE002C014)…continued PINSEL2 bits Description Reset value |
类似零件编号 - LPC2294JBD144 |
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类似说明 - LPC2294JBD144 |
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