参数资料
型号: PIC18LF4331T-I/ML
厂商: Microchip Technology
文件页数: 94/119页
文件大小: 0K
描述: IC MCU FLASH 4KX16 44QFN
标准包装: 1,600
系列: PIC® 18F
核心处理器: PIC
芯体尺寸: 8-位
速度: 40MHz
连通性: I²C,SPI,UART/USART
外围设备: 欠压检测/复位,LVD,电源控制 PWM,QEI,POR,PWM,WDT
输入/输出数: 36
程序存储器容量: 8KB(4K x 16)
程序存储器类型: 闪存
EEPROM 大小: 256 x 8
RAM 容量: 768 x 8
电压 - 电源 (Vcc/Vdd): 2 V ~ 5.5 V
数据转换器: A/D 9x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 44-VQFN 裸露焊盘
包装: 带卷 (TR)
Micrel, Inc.
KSZ8842-PMQL/PMBL
October 2007
76
M9999-100207-1.5
Bit
Default
R/W
Description
2 – 0
111
RW
Port VLAN membership
Define the port’s Port VLAN membership. Bit 2 stands for the 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.
Port 1 VID Control Register (Offset 0x0504): P1VIDCR
This register contains the global per port control for the switch port 1 function.
Bit
Default
R/W
Description
15-13
000
RW
User Priority bits
Port 1 tag [15-13] for priority
12
0
RW
CFI bit
Port 1 tag [12] for CFI
11-0
0x001
RW
VID
Port 1 tag [11-0] for VID
Note: P1VIDCR serve two purposes:
(1) Associated with the ingress untagged packets, and used for egress tagging.
(2) Default VID for the ingress untagged or null-VID-tagged packets, and used for address look up.
Port 1 Control Register 3 (Offset 0x0506): P1CR3
This register contains the port 1 control register for the switch port 1 function.
Bit
Default
R/W
Description
15 – 5
00000000000
RO
Reserved
4
0
RW
Reserved
3:2
00
RW
Ingress Limit Mode.
These bits determine what kinds of frames are limited and counted
against Ingress limiting as follows:
00 = limit and count all frames
01 = limit and count Broadcast, Multicast, and flooded unicast frames
10 = limit and count Broadcast and Multicast frames only
11 = limit and count Broadcast frames only
1
0
RW
Count IFG bytes
1 = each frame’s minimum inter frame gap
(IFG) bytes (12 per frame) are included in Ingress and Egress rate
limiting calculations.
0 = IFG bytes are not counted
0
RW
Count Preamble bytes
1 = each frame’s preamble bytes (8 per frame) are included in Ingress
and Egress rate limiting calculations.
0 = preamble bytes are not counted
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