PIC24FJ64GA306-I/MR Microchip Technology, PIC24FJ64GA306-I/MR Datasheet - Page 262

• Manufacturer Part Number: PIC24FJ64GA306-I/MR
• Description: 16-bit, 16 MIPS, 64 KB Flash, 8 KB RAM, 53 I/O, LCD, XLP W/Vbat 64 QFN 9x9x0.9mm
• Manufacturer: Microchip Technology

PIC24FJ128GA310 FAMILY
REGISTER 20-8:
DS39996F-page 262
bit 15
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 15
bit 14
bit 13-12
bit 11-8
bit 7
bit 6
bit 5-4
bit 3-0
Note 1:
R-0, HSC
R-1, HSC
OBE
IBF
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.
IBF: Input Buffer Full Status bit
1 = All writable Input Buffer registers are full
0 = Some or all of the writable Input Buffer registers are empty
IBOV: Input Buffer Overflow Status bit
1 = A write attempt to a full Input register occurred (must be cleared in software)
0 = No overflow occurred
Unimplemented: Read as ‘0’
IB3F:IB0F: Input Buffer x Status Full bits
1 = Input buffer contains unread data (reading the buffer will clear this bit)
0 = Input buffer does not contain unread data
OBE: Output Buffer Empty Status bit
1 = All readable Output Buffer registers are empty
0 = Some or all of the readable Output Buffer registers are full
OBUF: Output Buffer Underflow Status bit
1 = A read occurred from an empty output register (must be cleared in software)
0 = No underflow occurred
Unimplemented: Read as ‘0’
OB3E:OB0E: Output Buffer x Status Empty bit
1 = Output buffer is empty (writing data to the buffer will clear this bit)
0 = Output buffer contains untransmitted data
R/W-0 HS
R/W-0 HS
OBUF
IBOV
PMSTAT: EPMP STATUS REGISTER (SLAVE MODE ONLY)
HS = Hardware Settable bit
W = Writable bit
‘1’ = Bit is set
U-0
U-0
—
—
U-0
U-0
—
—
(1)
HSC = Hardware Settable/Clearable bit
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R-0, HSC
R-1, HSC
IB3F
OB3E
(1)
R-0, HSC
R-1, HSC
IB2F
OB2E
 2010-2011 Microchip Technology Inc.
(1)
x = Bit is unknown
R-0, HSC
R-1, HSC
IB1F
OB1E
(1)
R-0, HSC
R-1, HSC
IB0F
OB0E
(1)
bit 8
bit 0