EZ80F91MCU ZILOG [Zilog, Inc.], EZ80F91MCU Datasheet - Page 286
EZ80F91MCU
Manufacturer Part Number
EZ80F91MCU
Description
eZ80Acclaim-TM Flash Microcontrollers
Manufacturer
ZILOG [Zilog, Inc.]
Datasheet
1.EZ80F91MCU.pdf
(396 pages)
- Current page: 286 of 396
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PS019209-0504
EMAC PHY Configuration Data Register—High Byte
The High Byte of the EMAC PHY Configuration Data Register represents the con-
figuration data written to the external PHY. See Table 156.
Table 156. EMAC PHY Configuration Data Register—High Byte
(EMAC_CTLD_H = 003Dh)
EMAC PHY Address Register
The EMAC PHY Address Register allows access to the external PHY registers.
See Table 157.
Table 157. EMAC PHY Address Register
(EMAC_RGAD = 003Eh)
Bit
Reset
CPU Access
Note: R/W = Read/Write.
Bit
Position
[7:0]
EMAC_CTLD_H
Bit
Reset
CPU Access
Note: R = Read Only; R/W = Read/Write.
Bit
Position
[7:5]
[4:0]
RGAD
Value
000
00h–
1Fh
Value
00h–
FFh
R/W
Description
Reserved.
Programmable 5-bit value which selects address within the
selected external PHY.
P R E L I M I N A R Y
R
7
0
7
0
Description
These bits represent the High byte of the 2-byte PHY
configuration data value, {EMAC_CTLD_H,
EMAC_CTLD_L}. Bit 7 is bit 15 (msb) of the 16-bit value.
Bit 0 is bit 8 of the 16-bit value.
R/W
R
6
0
6
0
R/W
R
5
0
5
0
R/W
R/W
4
0
4
0
R/W
R/W
Ethernet Media Access Controller
3
0
3
0
Product Specification
R/W
R/W
2
0
2
0
eZ80F91 MCU
R/W
R/W
1
0
1
0
R/W
R/W
0
0
0
0
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