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| 型號(hào)： | PIC16LC662T-04/PT |
| 廠商： | Microchip Technology |
| 文件頁(yè)數(shù)： | 63/125頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC MCU OTP 4KX14 COMP 44TQFP |
| 標(biāo)準(zhǔn)包裝： | 1,200 |
| 系列： | PIC® 16C |
| 核心處理器： | PIC |
| 芯體尺寸： | 8-位 |
| 速度： | 4MHz |
| 外圍設(shè)備： | 欠壓檢測(cè)/復(fù)位，LED，POR，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： | OTP |
| RAM 容量： | 176 x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 3 V ~ 6 V |
| 振蕩器型： | 外部 |
| 工作溫度： | 0°C ~ 70°C |
| 封裝/外殼： | 44-TQFP |
| 包裝： | 帶卷 (TR) |
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Micrel, Inc.
KSZ8862-16/32MQL
April 2007
42
M9999-040407-3.0
IGMP Support
For Internet Group Management Protocol (IGMP) support in Layer 2, the KSZ8862M provides two components:
“IGMP” Snooping
The KSZ8862M traps IGMP packets and forwards them only to the processor (host port). The IGMP packets are
identified as IP packets (either Ethernet IP packets, or IEEE 802.3 SNAP IP packets) with IP version = 0x4 and
protocol version number = 0x2.
“Multicast Address Insertion” in the Static MAC Table
Once the multicast address is programmed in the Static MAC Table, the multicast session is trimmed to the
subscribed ports, instead of broadcasting to all ports.
IPv6 MLD Snooping
The KSZ8862M traps IPv6 Multicast Listener Discovery (MLD) packets and forwards them only to the processor
(host port). MLD snooping is controlled by SGCR2 [13] (MLD snooping enable) and SGCR2 [12] (MLD option).
Setting SGCR2 [13] causes the KSZ8862M to trap packets that meet all of the following conditions:
IPv6 multicast packets
Hop count limit = 1
IPv6 next header = 1 or 58 (or = 0 with hop-by-hop next header = 1 or 58)
If SGCR2[12] = 1, IPv6 next header = 43, 44, 50, 51, or 60 (or =0 with hop-by-hop next header = 43, 44,
50, 51, or 60)
Port Mirroring Support
KSZ8862M supports “Port Mirroring” comprehensively as:
“Receive only” mirror on a port
All the packets received on the port are mirrored on the sniffer port. For example, port 1 is programmed to be
“receive sniff” and the host port is programmed to be the “sniffer port”. A packet received on port 1 is destined to
port 2 after the internal lookup. The KSZ8862M forwards the packet to both port 2 and the host port. The
KSZ8862M can optionally even forward “bad” received packets to the “sniffer port”.
“Transmit only” mirror on a port
All the packets transmitted on the port are mirrored on the sniffer port. For example, port 1 is programmed to be
“transmit sniff” and the host port is programmed to be the “sniffer port”. A packet received on port 2 is destined to
port 1 after the internal lookup. The KSZ8862M forwards the packet to both port 1 and the host port.
“Receive and transmit” mirror on two ports
All the packets received on port A and transmitted on port B are mirrored on the sniffer port. To turn on the “AND”
feature, set register SGCR2, bit 8 to “1”. For example, port 1 is programmed to be “receive sniff”, port 2 is
programmed to be “transmit sniff”, and the host port is programmed to be the “sniffer port”. A packet received on
port 1 is destined to port 2 after the internal lookup. The KSZ8862M forwards the packet to both port 2 and the
host port.
Multiple ports can be selected as “receive sniff” or “transmit sniff”. In addition, any port can be selected as the “sniffer
port”. All these per port features can be selected through registers P1CR2, P2CR2, and P3CR2 for ports 1, 2, and the
host port, respectively.
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| PIC16LC66T-04/SO | 功能描述:8位微控制器 -MCU 14KB 368 RAM 22 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT |
| PIC16LC66T-04I/SO | 功能描述:8位微控制器 -MCU 14KB 368 RAM 22 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT |
| PIC16LC67-04/L | 功能描述:8位微控制器 -MCU 14KB 368 RAM 33 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT |
| PIC16LC67-04/P | 功能描述:8位微控制器 -MCU 14KB 368 RAM 33 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT |
| PIC16LC67-04/PQ | 功能描述:8位微控制器 -MCU 14KB 368 RAM 33 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT |
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