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參數(shù)資料
| 型號： | PIC12F635-I/SN |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 60/74頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MCU FLASH 1KX14 8SOIC |
| 產(chǎn)品培訓模塊： | Asynchronous Stimulus 8-bit PIC® Microcontroller Portfolio |
| 標準包裝： | 100 |
| 系列： | PIC® 12F |
| 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，POR，WDT |
| 輸入/輸出數(shù)： | 5 |
| 程序存儲器容量： | 1.75KB（1K x 14） |
| 程序存儲器類型： | 閃存 |
| EEPROM 大小： | 128 x 8 |
| RAM 容量： | 64 x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 2 V ~ 5.5 V |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 637 (CN2011-ZH PDF) |
| 配用： | AC162057-ND - MPLAB ICD 2 HEADER 14DIP |
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Micrel, Inc.
KSZ8841-PMQL
October 2007
63
M9999-100407-1.5
MIB (Management Information Base) Counters
The KSZ8841-PMQL provides 32 MIB counters to monitor the port activity for network management. The MIB counters
are formatted as shown in Table 4.
Bit
Name
R/W
Description
Default
31
Overflow
RO
1 = Counter overflow.
0 = No counter overflow.
0
30
Count valid
RO
1 = Counter value is valid.
0 = 0 counter value is not valid.
0
29-0
Counter values
RO
Counter value
0
Table 4. Format of Port MIB Counters
The port MIB counters are read using indirect memory access. The base address offsets is 0x00 and address ranges is
0x00-0x1F as shown in Table 5.
The Port MIB counters read/write functions use Access Control register IACR (0x04A0) bit 12. The base address offset
and address range for port 1 is 0x00 and range is (0x00-0x1F) that can be changed in register IACR (0x04A0) bits[9:0].
The data of MIB counters are from the Indirect Access data register IADR4 (0x04A8) and IADR5 (0x04AA) based on
Table 4.
Offset
Counter Name
Description
0x0
(base
address)
RxByte
Rx octet count including bad packets.
0x1
Reserved. Do not write to this register.
0x2
RxUndersizePkt
Rx undersize packets w/ good CRC.
0x3
RxFragments
Rx fragment packets w/ bad CRC, symbol errors or alignment errors.
0x4
RxOversize
Rx oversize packets w/ good CRC (max: 1536 or 1522 bytes).
0x5
RxJabbers
Rx packets longer than 1522 bytes w/ either CRC errors, alignment
errors, or symbol errors (depends on max packet size setting).
0x6
RxSymbolError
Rx packets w/ invalid data symbol and legal packet size.
0x7
RxCRCError
Rx packets within (64,1522) bytes w/ an integral number of bytes and a
bad CRC (upper limit depends on max packet size setting).
0x8
RxAlignmentError
Rx packets within (64,1522) bytes w/ a non-integral number of bytes
and a bad CRC (upper limit depends on max packet size setting).
0x9
RxControl8808Pkts
Number of MAC control frames received by a port with 88-08h in
EtherType field.
0xA
RxPausePkts
Number of PAUSE frames received by a port. PAUSE frame is qualified
with EtherType (88-08h), DA, control opcode (00-01), data length (64B
min), and a valid CRC.
0xB
RxBroadcast
Rx good broadcast packets (not including error broadcast packets or
valid multicast packets).
0xC
RxMulticast
Rx good multicast packets (not including MAC control frames, error
multicast packets or valid broadcast packets).
0xD
RxUnicast
Rx good unicast packets.
0xE
Rx64Octets
Total Rx packets (bad packets included) that were 64 octets in length.
0xF
Rx65to127Octets
Total Rx packets (bad packets included) that are between 65 and 127
octets in length.
0x10
Rx128to255Octets
Total Rx packets (bad packets included) that are between 128 and 255
octets in length.
0x11
Rx256to511Octets
Total Rx packets (bad packets included) that are between 256 and 511
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相關代理商/技術參數(shù) |
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| PIC12F635TE/MF | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8/14-PIN FLASH-BASED, 8-BIT CMOS MICROCONTROLLERS WITH NANOWATT TECHNOLOGY |
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| PIC12F635TE/P | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8/14-PIN FLASH-BASED, 8-BIT CMOS MICROCONTROLLERS WITH NANOWATT TECHNOLOGY |
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