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参数资料
| 型号： | 78Q8430-100IGT/F |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 80/88页 |
| 文件大小： | 0K |
| 描述： | IC LAN MEDIA ACCESS CTLR 100LQFP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 90 |
| 控制器类型： | 以太网控制器，MAC/PHY |
| 电源电压： | 3.3V |
| 电流 - 电源： | 230mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 100-LQFP |
| 供应商设备封装： | 100-LQFP（14x14） |
| 包装： | 托盘 |
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DS_8430_001
78Q8430 Data Sheet
Rev. 1.2
81
7.7.11 PHY Diagnostic Register – MR18
This register contains both user accessible and non-user accessible bits (Reserved) for internal
testmodes. The user-accessible bits are located at bit 12:8 locations.
Bit
Symbol
Type
Default Description
15:13
RSVD
R
0
Reserved
12
ANEGF
RC
0
Auto-Negotiation Fail Indication
This bit is set when auto-negotiation completes and no
common technology was found. It remains set until read.
11
DPLX
R
0
Duplex Indication
This bit indicates the result of the auto-negotiation for
duplex arbitration as follows:
0 = half duplex was the highest common denominator
1 = full duplex was the highest common denominator
10
RATE
R
0
Rate Indication
This bit indicates the result of the auto-negotiation for data
rate arbitration as follows:
0 = 10Base-T was the highest common denominator
1 = 100Base-TX was the highest common denominator
9
RXSD
R
0
Receiver Signal Detect Indication
In 10Base-T mode, this bit indicates that Manchester data
has been detected. In 100Base-TX mode, it indicates that
the receive signal activity has been detected (but not
necessarily locked on to).
8
RXLCK
R
0
Receive PLL Lock Indication
Indicates that the Receive PLL has locked onto the receive
signal for the selected speed of operation (10Base-T or
100Base-TX).
7:0
RSVD
R
0
Reserved
7.7.12 PHY LED Configuration Register – MR23
Bit
Symbol
Type
Default Description
15:8
RSVD
R/W
0
Reserved
7:4
LED1[3:0]
R
<1h>
0000 = Link OK
0001 = RX or TX Activity (Default LED1)
0010 = TX Activity
0011 = RX Activity
0100 = Collision
0101 = 100 BASE-TX mode
0110 = 10 BASE-T mode
0111 = Full Duplex
1000 = Link OK/Blink=RX or TX Activity
3:0
LED0[3:0]
R
<0h>
0000 = Link OK (Default LED0)
0001 = RX or TX Activity
0010 = TX Activity
0011 = RX Activity
0100 = Collision
0101 = 100 BASE-TX mode
0110 = 10 BASE-T mode
0111 = Full Duplex
1000 = Link OK/Blink=RX or TX Activity
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