70353C datasheet(20/76 Pages) MICROCHIP

20 / 76 page

dsPIC33E/PIC24E Family Reference Manual

DS70353C-page 21-20

R/W-0

U-0

DMABS<2:0>

—

bit 15

bit 8

U-0

R/W-0

—

FSA<4:0>

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 15-13

DMABS<2:0>: Message Buffer Size bits

111 = Reserved; do not use

110 = 32 buffers in device RAM

101 = 24 buffers in device RAM

100 = 16 buffers in device RAM

011 = 12 buffers in device RAM

010 = Eight buffers in device RAM

001 = Six buffers in device RAM

000 = Four buffers in device RAM

bit 12-5

Unimplemented: Read as ‘0’

bit 4-0

FSA<4:0>: FIFO Start Area bits

11111 = Read buffer RB31

11110 = Read buffer RB30

•

00010 = TX/RX buffer TRB2

00001 = TX/RX buffer TRB1

00000 = TX/RX buffer TRB0

70353C Datasheet(PDF) 20 Page - Microchip Technology

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