W83877ATG Nuvoton Technology Corporation of America, W83877ATG Datasheet - Page 74

• Manufacturer Part Number: W83877ATG
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83877ATG

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Bit 7:
Bit 6:
Bit 5:
Bit 4:
Bit 3:
Bit 2:
Bit 1:
Bit 0:
6.3.7.6. Set5.Reg6, 7 - Receiver Frame Length FIFO (RFLFL/RFLFH) or Lost Frame Number
(LST_NU)
Receiver Frame Length FIFO (RFLFL/RFLFH):
These registers are 13-bit. Reading these registers will return received frame length. When read the
register of RFLFH will pop-up another frame status and frame length if FSFDR=1 (Set5.Reg4.Bit7).
Reset Value
Reset Value
LST_NU
RFLFL/
RFLFH
REG.
FSFDR - Frame Status FIFO Data Ready
Indicates that there is valid data in frame status FIFO bottom.
LST_FR - Lost Frame
Set to 1 when one or more than one frame has been lost.
Reserved .
MX_LEX - Maximum Frame Length Exceed
Set to 1 when programmed maximum frame length defined Set4.Reg6 and Set4.Reg7 are
exceeded. This bit is frame status FIFO bottom. Reading this bit will return a valid value
when FSFDR=1 (Frame Status FIFO Data Ready).
PHY_ERR - Physical Error
During receiving data, any physical layer error, defined IrDA 1.1, will be set to 1 in this bit.
This bit is frame status FIFO bottom. Reading this bit will return a valid value when
FSFDR=1 (Frame Status FIFO Data Ready).
CRC_ERR - CRC Error
Set to 1 when a bad CRC is received in a frame. This CRC belongs to physical layer defined
in IrDA 1.1. This bit is frame status FIFO bottom. Reading this bit will return a valid value
when FSFDR=1 (Frame Status FIFO Data Ready).
RX_OV - Received Data Overrun
Set to 1 when Received data in FIFO overrun occurs.
FSF_OV - Frame Status FIFO Overrun
Set to 1 When frame status FIFO overrun occurs.
BIT 7
Bit 7
0
0
-
BIT 6
Bit 6
0
0
-
BIT 5
Bit 5
0
0
-
Bit 12
BIT 4
Bit 4
0
0
- 67 -
W83877ATF/W83877ATG
Bit 11
BIT 3
Bit 3
0
0
Publication Release Date:November 2006
Bit 10
BIT 2
Bit 2
0
0
BIT 1
Bit 1
Bit 9
0
0
Version 1.0
BIT 0
Bit 0
Bit 8
0
0