參數(shù)資料
型號: PIC16C662T-20I/PT
廠商: Microchip Technology
文件頁數(shù): 95/125頁
文件大?。?/td> 0K
描述: IC MCU OTP 4KX14 COMP 44TQFP
標準包裝: 1,200
系列: PIC® 16C
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,LED,POR,WDT
輸入/輸出數(shù): 33
程序存儲器容量: 7KB(4K x 14)
程序存儲器類型: OTP
RAM 容量: 176 x 8
電壓 - 電源 (Vcc/Vdd): 4 V ~ 6 V
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-TQFP
包裝: 帶卷 (TR)
Micrel, Inc.
KSZ8862-16/32MQL
April 2007
71
M9999-040407-3.0
Bit
Default
R/W
Description
1
0
RW
Legal Maximum Packet Size Check Enable
0 = accepts 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 are dropped.
0
1
RW
Priority Buffer Reserve
1 = each port is pre-allocated 48 buffers, used exclusively for high priority (q3, q2, and q1) packets.
Effective only when the multiple queue feature is turned on.
0 = each port is pre-allocated 48 buffers used for all priority packets (q3, q2,q1, and q0).
Bank 32 Switch Global Control Register 3 (0x06): SGCR3
This register contains the global control for the switch function.
Bit
Default
R/W
Description
15-8
0x63
RW
Broadcast Storm Protection Rate Bit [7:0]
These bits, along with SGCR3[2:0], determine how many 64-byte blocks of packet data are allowed
on an input port in a preset period. The period is 67ms for 100BT or 670ms for 10BT. The default is
1%.
7
0
RW
Reserved
6
0
RW
Switch Host Half-Duplex Mode
1 = enable host port interface half-duplex mode.
0 = enable host port interface full-duplex mode.
5
0
RW
Switch Flow Control Enable
1 = enable full-duplex flow control on Switch Host port.
0 = disable full-duplex flow control on Switch Host port.
4
0
RW
Reserved
3
0
RW
Null VID Replacement
1 = replaces NULL VID with port VID(12 bits).
0 = no replacement for NULL VID.
2-0
0x0
RW
Broadcast Storm Protection Rate Bit [10:8]
These bits, along with SGCR3[15:8] determine how many 64-byte blocks of packet data are allowed
on an input port in a preset period. The period is 67ms for 100BT or 670ms for 10BT. The default is
1%.
Rate: 148,800 frames/sec * 67 ms/interval * 1% = 99 frames/interval (approx.) = 0x63.
Bank 32 Switch Global Control Register 4 (0x08): SGCR4
This register contains the global control for the switch function.
Bit
Default
R/W
Description
15-0
0x2400
RW
Reserved
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PIC16C66T-04E/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
PIC16C66T-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
PIC16C66T-10/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
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