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DVR21 数据表(PDF) 247 Page - Microchip Technology |
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DVR21 数据表(HTML) 247 Page - Microchip Technology |
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247 / 416 page ![]() 2016-2018 Microchip Technology Inc. DS30010118D-page 247 PIC24FJ256GA705 FAMILY REGISTER 20-6: PMCSxBS: EPMP CHIP SELECT x BASE ADDRESS REGISTER(2) R/W(1) R/W(1) R/W(1) R/W(1) R/W(1) R/W(1) R/W(1) R/W(1) BASE<23:16> bit 15 bit 8 R/W(1) U-0 U-0 U-0 R/W(1) U-0 U-0 U-0 BASE15 — — — BASE11 — — — bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown bit 15-7 BASE<23:15>: Chip Select x Base Address bits(1) bit 6-4 Unimplemented: Read as ‘0’ bit 3 BASE11: Chip Select x Base Address bit(1) bit 2-0 Unimplemented: Read as ‘0’ Note 1: The value at POR is 0080h for PMCS1BS and 8080h for PMCS2BS. 2: If the whole PMCS2BS register is written together as 0x0000, then the last EDS address for the Chip Select 1 will be FFFFFFh. In this case, Chip Select 2 should not be used. PMCS1BS has no such feature. |
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