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ST802RT1AFR 数据表(PDF) 27 Page - STMicroelectronics

部件名 ST802RT1AFR
功能描述  10/100 real-time Ethernet 3.3 V transceiver
PDF  58 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

ST802RT1AFR 数据表(HTML) 27 Page - STMicroelectronics

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ST802RT1A, ST802RT1B
Registers and descriptors description
Doc ID 17049 Rev 1
27/58
Next page: Indicates whether this is the last next page.
Msg page: Differentiates a message page from an unformatted page.
Ack2: Indicates that link partner has the ability to comply with the message.
Toggle: Used by the arbitration function to ensure synchronization with the link partner
during next page exchange.
Message code field: An 11-bit wide field, encoding 2048 possible messages.
Unformatted code field: An 11-bit wide field, which may contain an arbitrary value.
Table 19.
RN10 [0d16, 0x10]: RMII-TEST control register
Bit
Bit name
Description
Default
RW
type
Type
15:14
RESERVED
---
000b
RO
-
13
RESERVED
---
000b
RW
-
12:11
RESERVED
---
10b
RO
-
10
RESERVED
---
0b
RW
-
9
MII Enable
1 -> MII enabled
0 -> MII disabled, RMII enabled [see bit 10]
Strap
RW
-
8:6
RESERVED
---
000b
RW
-
5
FEF Enable
1 -> Far end fault enabled (only if auto-negotiation is
disabled)
0 -> Far end fault not enabled
0RW
-
4:3
RESERVED
---
00b
RO
-
2
FIFO-Extended
1 -> Extended FIFO mechanism for RMII enabled
0 -> Normal operation
This bit extends elasticity buffer size in RMII interface
0RW
-
1
RMII_OOBS
1 -> Out-of-band signaling enabled
0 -> Normal operation
To transfer no-TX/RX information (i.e. speed, link, duplex
mode) when TX_EN/CRS_DV are de-asserted (RMII 1.2)
0RW
-
0
RESERVED
---
0
RW
-



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