参数资料
型号: PIC16LC642-04/SP
厂商: Microchip Technology
文件页数: 90/125页
文件大小: 0K
描述: IC MCU OTP 4KX14 COMP 28DIP
产品培训模块: Asynchronous Stimulus
标准包装: 15
系列: PIC® 16C
核心处理器: PIC
芯体尺寸: 8-位
速度: 4MHz
外围设备: 欠压检测/复位,LED,POR,WDT
输入/输出数: 22
程序存储器容量: 7KB(4K x 14)
程序存储器类型: OTP
RAM 容量: 176 x 8
电压 - 电源 (Vcc/Vdd): 3 V ~ 6 V
振荡器型: 外部
工作温度: 0°C ~ 70°C
封装/外壳: 28-DIP(0.300",7.62mm)
包装: 管件
Micrel, Inc.
KSZ8862-16/32MQL
April 2007
67
M9999-040407-3.0
Bank 18 Receive Status Register (0x04): RXSR
This register indicates the status of the current received frame and mirrors the Receive Status word of the Receive Frame
in the RXQ.
Bit
Default Value
R/W
Description
15
-
RO
RXFV Receive Frame Valid
When set, it indicates that the present frame in the receive packet memory is valid. The
status information currently in this location is also valid.
When clear, it indicates that there is either no pending receive frame or that the current
frame is still in the process of receiving.
14-10
-
RO
Reserved
9-8
-
RO
RXSPN Receive Source Port Number
When bit is set, this field indicates the source port where the packet was received.
(Setting bit 9 = 0 and bit 8 = 1 indicates the packet was received from port 1. Setting bit
9 = 1 and bit 8 = 0 indicates that the packet was received from port 2. Valid port is either
port 1 or port 2.
7
-
RO
RXBF Receive Broadcast Frame
When set, it indicates that this frame has a broadcast address.
6
-
RO
RXMF Receive Multicast Frame
When set, it indicates that this frame has a multicast address (including the broadcast
address).
5
-
RO
RXUF Receive Unicast Frame
When set, it indicates that this frame has a unicast address.
4
-
RO
Reserved
3
-
RO
RXFT Receive Frame Type
When set, it indicates that the frame is an Ethernet-type frame (frame length is greater
than 1500 bytes).
When clear, it indicate that the frame is an IEEE 802.3 frame.
This bit is not valid for runt frames.
2
-
RO
RXTL Receive Frame Too Long
When set, it indicates that the frame length exceeds the maximum size of 1916 bytes.
Frames that are too long are passed to the host only if the pass bad frame bit is set (bit 9
in RXCR register)
Note: Frame too long is only a frame length indication and does not cause any frame
truncation.
1
-
RO
RXRF Receive Runt Frame
When set, it indicates that a frame was damaged by a collision or premature termination
before the collision window has passed. Runt frames are passed to the host only if the
pass bad frame bit is set (bit 9 in RXCR register).
0
-
RO
RXCE Receive CRC Error
When set, it indicates that a CRC error has occurred on the current received frame. A
CRC error frame is passed to the host only if the pass bad frame bit is set (bit 9 in RXCR
register).
Bank 18 Receive Byte Counter Register (0x06): RXBC
This register indicates the status of the current received frame and mirrors the Receive Byte Count word of the Receive
Frame in the RXQ.
Bit
Default Value
R/W
Description
15-11
-
RO
Reserved
10-0
-
RO
RXBC Receive Byte Count
Receive Byte Count.
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PIC16LC64A-04/L 功能描述:8位微控制器 -MCU 3.5KB 128 RAM 33 I/O RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
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