参数资料
型号: PIC16LC642-04/SP
厂商: Microchip Technology
文件页数: 125/125页
文件大小: 0K
描述: IC MCU OTP 4KX14 COMP 28DIP
产品培训模块: Asynchronous Stimulus
标准包装: 15
系列: PIC® 16C
核心处理器: PIC
芯体尺寸: 8-位
速度: 4MHz
外围设备: 欠压检测/复位,LED,POR,WDT
输入/输出数: 22
程序存储器容量: 7KB(4K x 14)
程序存储器类型: OTP
RAM 容量: 176 x 8
电压 - 电源 (Vcc/Vdd): 3 V ~ 6 V
振荡器型: 外部
工作温度: 0°C ~ 70°C
封装/外壳: 28-DIP(0.300",7.62mm)
包装: 管件
Micrel, Inc.
KSZ8862-16/32MQL
April 2007
99
M9999-040407-3.0
Bank 51 Port 2 Control Register 4 (0x02): P2CR4
This register contains the global per port control for the switch function.
Bit
Default
R/W
Description
Bit is same as:
15
0
RW
LED Off
1 = turn off all of the port 2 LEDs (P2LED3, P2LED2, P2LED1,
P2LED0). These pins are driven High if this bit is set to 1.
0 = normal operation.
Bank 46 0x00 bit 0
14
0
RW
Txids
1 = disable port’s transmitter.
0 = normal operation.
Bank 46 0x00 bit 1
13
0
RW
Restart AN
1 = restart auto-negotiation.
0 = normal operation.
Bank 46 0x00 bit 9
12
0
RW
Reserved
Bank 46 0x00 bit 2
11
0
RW
Power Down
1 = power-down.
0 = normal operation.
Bank 46 0x00 bit 11
10
0
RW
Disable Auto MDI/MDI-X
1= disable auto MDI/MDI-X function.
0= enable auto MDI/MDI-X function.
Bank 46 0x00 bit 3
9
0
RW
Force MDI-X
1 = if auto MDI/MDI-X is disabled, force PHY into MDI-X mode.
0 = do not force PHY into MDI-X mode.
Bank 46 0x00 bit 4
8
0
RW
Far-End Loopback
1 = perform loopback, as indicated (see Figure 14):
Start: RXP1/RXM1 (port 1).
Loopback: PMD/PMA of port 2’s PHY.
End: TXP1/TXM1 (port 1).
0 = normal operation.
Bank 46 0x00 bit 14
7
1
RW
Auto Negotiation Enable
0 = disable auto negotiation, speed and duplex are decided by bits 6
and 5 of the same register.
1 = auto negotiation is ON.
Bank 46 0x00 bit 12
6
0
RW
Force Speed
1 = force 100BT if AN is disabled (bit 7).
0 = force 10BT if AN is disabled (bit 7).
Bank 46 0x00 bit 13
5
0
RW
Force Duplex
1 = force full duplex if (1) AN is disabled or (2) AN is enabled but failed.
0 = force half duplex if (1) AN is disabled or (2) AN is enabled but failed.
Bank 46 0x00 bit 8
4
1
RW
Advertised flow control capability.
1 = advertise flow control (pause) capability.
0 = suppress flow control (pause) capability from transmission to the
link partner.
Bank 46 0x08 bit 10
3
1
RW
Advertised 100BT Full-duplex capability.
1 = advertise 100BT full-duplex capability.
0 = suppress 100BT full-duplex capability from transmission to the link
partner.
Bank 46 0x08 bit 8
2
1
RW
Advertised 100BT half-duplex capability.
1 = advertise 100BT half-duplex capability.
1 = suppress 100BT half-duplex capability from transmission to the link
partner.
Bank 46 0x08 bit 7
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