PIC24FJ128GA310 datasheet(262/406 Pages) MICROCHIP

262 / 406 page

PIC24FJ128GA310 FAMILY

DS39996F-page 262

 2010-2011 Microchip Technology Inc.

PMSTAT: EPMP STATUS REGISTER (SLAVE MODE ONLY)

R-0, HSC

R/W-0 HS

U-0

R-0, HSC

IBF

IBOV

—

—IB3F(1)

IB2F(1)

IB1F(1)

IB0F(1)

bit 15

bit 8

R-1, HSC

R/W-0 HS

U-0

R-1, HSC

OBE

OBUF

—

OB3E

OB2E

OB1E

OB0E

bit 7

bit 0

Legend:

HS = Hardware Settable bit

HSC = Hardware Settable/Clearable bit

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

IBF:

Input Buffer Full Status bit

= All writable Input Buffer registers are full

= Some or all of the writable Input Buffer registers are empty

bit 14

IBOV:

Input Buffer Overflow Status bit

= A write attempt to a full Input register occurred (must be cleared in software)

= No overflow occurred

bit 13-12

Unimplemented:

Read as ‘0’

bit 11-8

IB3F:IB0F:

Input Buffer x Status Full bits(1)

= Input buffer contains unread data (reading the buffer will clear this bit)

= Input buffer does not contain unread data

bit 7

OBE:

Output Buffer Empty Status bit

= All readable Output Buffer registers are empty

= Some or all of the readable Output Buffer registers are full

bit 6

OBUF:

Output Buffer Underflow Status bit

= A read occurred from an empty output register (must be cleared in software)

= No underflow occurred

bit 5-4

Unimplemented:

Read as ‘0’

bit 3-0

OB3E:OB0E:

Output Buffer x Status Empty bit

= Output buffer is empty (writing data to the buffer will clear this bit)

= Output buffer contains untransmitted data

Note 1:

Even though an individual bit represents the byte in the buffer, the bits corresponding to the word (Byte 0

and 1, or Byte 2 and 3) get cleared, even on byte reading.

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