參數(shù)資料
型號: PIC16F639-E/SS
廠商: Microchip Technology
文件頁數(shù): 16/74頁
文件大?。?/td> 0K
描述: IC MCU FLASH 2KX14 20SSOP
標準包裝: 67
系列: PIC® 16F
核心處理器: PIC
芯體尺寸: 8-位
速度: 20MHz
外圍設備: 欠壓檢測/復位,LVD,POR,WDT
輸入/輸出數(shù): 11
程序存儲器容量: 3.5KB(2K x 14)
程序存儲器類型: 閃存
RAM 容量: 128 x 8
電壓 - 電源 (Vcc/Vdd): 2 V ~ 3.6 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 125°C
封裝/外殼: 20-SSOP(0.209",5.30mm 寬)
包裝: 管件
配用: XLT20SS1-1-ND - SOCKET TRANSITION 20DIP 20SSOP
AC162066-ND - HEADER INTRFC MPLAB ICD2 20PIN
Micrel, Inc.
KSZ8841-PMQL
October 2007
23
M9999-100407-1.5
Bit
Name
Description
3
PME_CK
PME Clock
When this bit is a “1”, it indicates that the function relies on the presence of the PCI
clock for PME# operation.
When this bit is a “0”, it indicates that no PCI clock is required for the function to
generate PME#. This bit is loaded to bit 3 of PMCR register and bit 19 of CCID
register.
2 - 0
PCI: PME_VER
PCI: Power Management PCI Version. These bits are loaded to bits [2-0] of the
PMCR register and bits [18-16] of the CCID register.
Table 3. KSZ8841-PMQL ConfigParam in EEPROM Format
Loopback Support
The KSZ8841-PMQL provides loopback support for remote diagnostic failure. In loopback mode, the speed at the PHY
port will be set to 100BASE-TX full-duplex mode. The KSZ8841-PMQL only supports Near-end (Remote) Loopback.
Near-end (Remote) loopback is conducted at PHY port 1 of the KSZ8841-PMQL. The loopback path starts at the PHY
ports receive inputs (RXPx/RXMx), wraps around at the same PHY port’s PMD/PMA, and ends at the PHY ports
transmit outputs (TXPx/TXMx).
Bit [1] of register P1PHYCTRL is used to enable near-end loopback for port 1. Alternatively, Bit [9] of register
P1SCSLMD can also be used to enable near-end loopback. The port’s near-end loopback path is illustrated in the
following Figure 4.
PCI Bus I/F Unit
RX/TX DMA
8K RX/TX Buffer
MAC1
PCS1
PMD1/PMA1
RXP1 /
RXM1
TXP1 /
TXM1
PHY Port 1
Near-end (remote)
Loopback
Figure 6. Port 1 Near-End (Remote) Loopback Path
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PIC16F639-I/SS 制造商:Microchip Technology Inc 功能描述:8-Bit Microcontroller IC
PIC16F639T-I/SO 功能描述:8位微控制器 -MCU 4kb 128 RAM 12 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT