dspic33fj128gp204 Microchip Technology Inc., dspic33fj128gp204 Datasheet - Page 294

• Manufacturer Part Number: dspic33fj128gp204
• Description: High-performance, 16-bit Digital Signal Controllers
• Manufacturer: Microchip Technology Inc.

REGISTER 26-5:
DS70292C-page 292
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
OBE
R-0
IBF
R-1
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 byte 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 data that has not been read (reading buffer will clear this bit)
0 = Input buffer does not contain any 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 bits
1 = A read occurred from an empty output byte 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 data that has not been transmitted
R/W-0, HS
R/W-0, HS
OBUF
IBOV
PMSTAT: PARALLEL PORT STATUS REGISTER
HS = Hardware Set bit
W = Writable bit
‘1’ = Bit is set
U-0
U-0
—
—
U-0
U-0
Preliminary
—
—
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
OB3E
IB3F
R-0
R-1
OB2E
IB2F
R-0
R-1
© 2009 Microchip Technology Inc.
x = Bit is unknown
OB1E
IB1F
R-0
R-1
OB0E
IB0F
R-0
R-1
bit 8
bit 0