参数资料
型号: PIC16F1508T-I/SO
厂商: Microchip Technology
文件页数: 71/123页
文件大小: 0K
描述: IC MCU 8BIT 7KB FLASH 20-SOIC
标准包装: 1,600
系列: PIC® XLP™ 16F
核心处理器: PIC
芯体尺寸: 8-位
速度: 20MHz
连通性: I²C,LIN,SPI,UART/USART
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 17
程序存储器容量: 7KB(4K x 14)
程序存储器类型: 闪存
RAM 容量: 256 x 8
电压 - 电源 (Vcc/Vdd): 2.3 V ~ 5.5 V
数据转换器: A/D 12x10b,D/A 1x5b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 20-SOIC(0.295",7.50mm 宽)
包装: 带卷 (TR)
Micrel, Inc.
KSZ8873MLLJ
September 2011
51
M9999-091911-1.8
Bit
Name
R/W
Description
Default
2
Huge Packet
Support
R/W
=1, Will accept packet sizes up to 1916 bytes (inclusive). This bit
setting will override setting from bit 1 of this register.
=0, The max packet size will be determined by bit 1 of this register.
0
1
Legal
Maximum
Packet Size
Check Enable
R/W
=0, Will accept packet sizes up to 1536 bytes (inclusive).
=1, 1522 bytes for tagged packets, 1518 bytes for untagged
packets. Any packets larger than the specified value will be
dropped.
0
Reserved
R/W
Reserved
Do not change the default value.
0
Register 5 (0x05): Global Control 3
Bit
Name
R/W
Description
Default
7
802.1Q VLAN
Enable
R/W
=1, 802.1Q VLAN mode is turned on. VLAN table needs to set up
before the operation.
=0, 802.1Q VLAN is disabled.
0
6
IGMP Snoop
Enable on
Switch MII
Interface
R/W
=1, IGMP snoop is enabled. All IGMP packets will be forwarded to
the Switch MII port.
=0, IGMP snoop is disabled.
0
5
Reserved
RO
Reserved
Do not change the default values.
0
4
Reserved
RO
Reserved
Do not change the default values.
0
3
Weighted
Fair Queue
Enable
R/W
=0, Priority method set by the registers 175-186 bit [7]=0 for port 1,
port 2 and port 3.
=1, Weighted Fair Queueing enabled. When all four queues have
packets waiting to transmit, the bandwidth allocation is q3:q2:q1:q0
= 8:4:2:1.
If any queues are empty, the highest non-empty queue gets one
more weighting. For example, if q2 is empty, q3:q2:q1:q0 becomes
(8+1):0:2:1.
0
2
Reserved
RO
Reserved
Do not change the default values.
0
1
Reserved
RO
Reserved
Do not change the default values.
0
Sniff Mode
Select
R/W
=1, Will do RX AND TX sniff (both source port and destination port
need to match)
=0, Will do RX OR TX sniff (either source port or destination port
needs to match). This is the mode used to implement RX only sniff.
0
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