EZ80F91MCU ZILOG [Zilog, Inc.], EZ80F91MCU Datasheet - Page 304

• Manufacturer Part Number: EZ80F91MCU
• Description: eZ80Acclaim-TM Flash Microcontrollers
• Manufacturer: ZILOG [Zilog, Inc.]

PS019209-0504
EMAC FIFO Flags Register
The FIFO Flags value is set in the EMAC module hardware to half full, or 16
bytes. See Table 184.
Table 184. EMAC FIFO Flags Register
(EMAC_FFLAGS = 0059h)
Bit
Reset
CPU Access
Note: R = Read Only.
Bit
Position
7
TFF
6
5
TFAE
4
TFE
3
RFF
2
RFAF
1
RFAE
0
RFE
Value
1
0
0
1
0
1
0
1
0
1
0
1
0
1
0
Description
Transmit FIFO full.
Transmit FIFO not full.
Reserved.
Transmit FIFO almost empty.
Transmit FIFO not almost empty.
Transmit FIFO empty.
Transmit FIFO not empty.
Receive FIFO full.
Receive FIFO not full.
Receive FIFO almost full.
Receive FIFO not almost full.
Receive FIFO almost empty.
Receive FIFO not almost empty.
Receive FIFO empty.
Receive FIFO not empty.
P R E L I M I N A R Y
R
7
0
R
6
0
R
5
1
R
4
1
Ethernet Media Access Controller
R
3
0
Product Specification
R
2
0
eZ80F91 MCU
R
1
1
R
0
1
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