參數(shù)資料
型號(hào)： KSZ9021RN-EVAL
廠商： Micrel Inc
文件頁(yè)數(shù)： 43/58頁(yè)
文件大?。?/td> 0K
描述： BOARD EVALUATION FOR KSZ9021RN
標(biāo)準(zhǔn)包裝： 1
主要目的： 接口，以太網(wǎng)控制器（PHY 和 MAC）
嵌入式： 否
已用 IC / 零件： KSZ9021RN
已供物品： 板
相關(guān)產(chǎn)品： 576-3978-ND - IC TXRX 10/100/1000 SGL 48QFN
576-3637-ND - IC TXRX 10/100/1000 SGL 48QFN
其它名稱(chēng)： 576-3874
MCP444X/446X
DS22265A-page 48
2010 Microchip Technology Inc.
REGISTER 4-3:
TCON1 BITS (1)
R-1
R/W-1
D8
R3HW
R3A
R3W
R3B
R2HW
R2A
R2W
R2B
bit 8
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 8
D8:
Reserved. Forced to “1”
bit 7
R3HW:
Resistor 3 Hardware Configuration Control bit
This bit forces Resistor 3 into the “shutdown” configuration of the Hardware pin
1
= Resistor 3 is NOT forced to the hardware pin “shutdown” configuration
0
= Resistor 3 is forced to the hardware pin “shutdown” configuration
bit 6
R3A:
Resistor 3 Terminal A (P3A pin) Connect Control bit
This bit connects/disconnects the Resistor 3 Terminal A to the Resistor 3 Network
1
= P3A pin is connected to the Resistor 3 Network
0
= P3A pin is disconnected from the Resistor 3 Network
bit 5
R3W:
Resistor 3 Wiper (P3W pin) Connect Control bit
This bit connects/disconnects the Resistor 3 Wiper to the Resistor 3 Network
1
= P3W pin is connected to the Resistor 3 Network
0
= P3W pin is disconnected from the Resistor 3 Network
bit 4
R3B:
Resistor 3 Terminal B (P3B pin) Connect Control bit
This bit connects/disconnects the Resistor 3 Terminal B to the Resistor 3 Network
1
= P3B pin is connected to the Resistor 3 Network
0
= P3B pin is disconnected from the Resistor 3 Network
bit 3
R2HW:
Resistor 2 Hardware Configuration Control bit
This bit forces Resistor 2 into the “shutdown” configuration of the Hardware pin
1
= Resistor 2 is NOT forced to the hardware pin “shutdown” configuration
0
= Resistor 2 is forced to the hardware pin “shutdown” configuration
bit 2
R2A:
Resistor 2 Terminal A (P0A pin) Connect Control bit
This bit connects/disconnects the Resistor 2 Terminal A to the Resistor 2 Network
1
= P2A pin is connected to the Resistor 2 Network
0
= P2A pin is disconnected from the Resistor 2 Network
bit 1
R2W:
Resistor 2 Wiper (P0W pin) Connect Control bit
This bit connects/disconnects the Resistor 2 Wiper to the Resistor 2 Network
1
= P2W pin is connected to the Resistor 2 Network
0
= P2W pin is disconnected from the Resistor 2 Network
bit 0
R2B:
Resistor 2 Terminal B (P2B pin) Connect Control bit
This bit connects/disconnects the Resistor 2 Terminal B to the Resistor 2 Network
1
= P2B pin is connected to the Resistor 2 Network
0
= P2B pin is disconnected from the Resistor 2 Network
Note 1:
These bits do not affect the wiper register values.
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