參數(shù)資料
型號(hào): PIC16F74T-E/PT
廠(chǎng)商: Microchip Technology
文件頁(yè)數(shù): 87/104頁(yè)
文件大?。?/td> 0K
描述: IC MCU FLASH 4KX14 A/D 44TQFP
標(biāo)準(zhǔn)包裝: 1,200
系列: PIC® 16F
核心處理器: PIC
芯體尺寸: 8-位
速度: 20MHz
連通性: I²C,SPI,UART/USART
外圍設(shè)備: 欠壓檢測(cè)/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 33
程序存儲(chǔ)器容量: 7KB(4K x 14)
程序存儲(chǔ)器類(lèi)型: 閃存
RAM 容量: 192 x 8
電壓 - 電源 (Vcc/Vdd): 4 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x8b
振蕩器型: 外部
工作溫度: -40°C ~ 125°C
封裝/外殼: 44-TQFP
包裝: 帶卷 (TR)
其它名稱(chēng): PIC16F74TE/PT
Micrel, Inc.
KSZ8851-16MLLJ
March 2010
75
M9999-030210-1.0
Port 1 PHY Special Control/Status, LinkMD (0xF4 – 0xF5): P1SCLMD (Continued)
11
0
RW
Force_lnk
Force link.
1 = force link pass; 0 = normal operation.
10
0
RO
Reserved.
9
0
RW
Remote (Near-end) loopback (rlb)
1 = perform remote loopback at PHY
(RXP1/RXM1 -> TXP1/TXM1, see Figure 10)
0 = normal operation
8-0
0x000
RO
Vct_fault_count
VCT fault count.
Distance to the fault. It’s approximately
0.4m*vct_fault_count.
Port 1 Control Register (0xF6 – 0xF7): P1CR
This register contains the global per port control for the chip function.
Bit
Default
R/W
Description
Bit is same as:
15
0
RW
LED Off
1 = Turn off all of the port 1 LEDs (P1LED3,
P1LED2, P1LED1, P1LED0). These pins are driven
high if this bit is set to one.
0 = normal operation.
Bit 0 in P1MBCR
14
0
RW
Txids
1 = disable the port’s transmitter.
0 = normal operation.
Bit 1 in P1MBCR
13
0
RW
Restart AN
1 = restart auto-negotiation.
0 = normal operation.
Bit 9 in P1MBCR
12
0
RW
Reserved
11
0
RW
Reserved
10
0
RW
Disable auto MDI/MDI-X
1 = disable auto MDI/MDI-X function.
0 = enable auto MDI/MDI-X function.
Bit 3 in P1MBCR
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.
Bit 4 in P1MBCR
8
0
RW
Reserved
7
1
RW
Auto Negotiation Enable
1 = auto negotiation is enabled.
0 = disable auto negotiation, speed, and duplex are
decided by bits 6 and 5 of the same register.
Bit 12 in P1MBCR
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