參數(shù)資料
型號: PIC18F4431-I/P
廠商: Microchip Technology
文件頁數(shù): 116/119頁
文件大?。?/td> 0K
描述: IC PIC MCU FLASH 8KX16 40DIP
產(chǎn)品培訓(xùn)模塊: Asynchronous Stimulus
8-bit PIC® Microcontroller Portfolio
標準包裝: 10
系列: PIC® 18F
核心處理器: PIC
芯體尺寸: 8-位
速度: 40MHz
連通性: I²C,SPI,UART/USART
外圍設(shè)備: 欠壓檢測/復(fù)位,LVD,電源控制 PWM,QEI,POR,PWM,WDT
輸入/輸出數(shù): 36
程序存儲器容量: 16KB(8K x 16)
程序存儲器類型: 閃存
EEPROM 大小: 256 x 8
RAM 容量: 768 x 8
電壓 - 電源 (Vcc/Vdd): 4.2 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 9x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 40-DIP(0.600",15.24mm)
包裝: 管件
產(chǎn)品目錄頁面: 645 (CN2011-ZH PDF)
配用: DVA18XP400-ND - DEVICE ADAPTER 18F4220 PDIP 40LD
444-1001-ND - DEMO BOARD FOR PICMICRO MCU
ACICE0206-ND - ADAPTER MPLABICE 40P 600 MIL
Micrel, Inc.
KSZ8842-PMQL/PMBL
October 2007
96
M9999-100207-1.5
Host Control Register 2 (Offset 0x0542): P3CR2
This register contains the global per port control for the switch host port function.
Bit
Default
R/W
Description
15
0
RW
reserved
14
0
RW
Ingress VLAN filtering
1 = the switch will discard packets whose VID port membership in VLAN
table bits [18:16] does not include the ingress port.
0 = no ingress VLAN filtering.
13
0
RW
Discard Non PVID packets
1 = the switch will discard packets whose VID does not match ingress port
default VID.
0 = no packets will be discarded.
12
0
RW
Reserved.
For factory testing purpose only. Always write 0.
11
0
RW
Reserved
Must be 0
10
1
RW
Transmit enable
1 = enable packet transmission on the port
0 = disable packet transmission on the port
9
1
RW
Receive enable
1 = enable packet reception on the port
0 = disable packet reception on the port
8
0
RW
Learning disable
1 = disable switch address learning capability
0 = enable switch address learning
7
0
RW
Sniffer port
1 = Port is designated as sniffer port and will transmit packets that are
monitored.
0 = Port is a normal port
6
0
RW
Receive sniff
1 = All the packets received on the port will be marked as “monitored
packets” and forwarded to the designated “sniffer port”
0 = no receive monitoring
5
0
RW
Transmit sniff
1 = All the packets transmitted on the port will be marked as “monitored
packets” and forwarded to the designated “sniffer port”
0 = no transmit monitoring
4
0
RW
Reserved
3
0
R/W
User Priority Field
1 = if the packet’s “user priority field” is greater than the “user priority bits”
in host’s VID Control register bits [15:13], replace the packet’s “user
priority field” with the “user priority bits” in host’s VID Control register bits
[15:13].
0 = do not compare and replace the packet’s ‘user priority field”
2 – 0
111
RW
Port VLAN membership
Define the port’s Port VLAN membership. Bit 2 stands for host port, bit 1
for port 2, and bit 0 for port 1. The Port can only communicate within the
membership. An ‘1’ includes a port in the membership; an ‘0’ excludes a
port from the membership.
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