參數(shù)資料
型號： MC68MH360ZQ33L
廠商： Freescale Semiconductor
文件頁數(shù)： 128/158頁
文件大?。?/td> 0K
描述： IC MPU QUICC 33MHZ 357-PBGA
標準包裝： 44
系列： M683xx
處理器類型： M683xx 32-位
速度： 33MHz
電壓： 5V
安裝類型： 表面貼裝
封裝/外殼： 357-BBGA
供應(yīng)商設(shè)備封裝： 357-PBGA（25x25）
包裝： 托盤
Chapter 5. Buffer Descriptors
Chapter 5
Buffer Descriptors
50
QMC buffer descriptors are located within 64 Kbytes in external memory; see Figure 2-2.
Each buffer descriptor contains key information about the buffer it denes.
The rst two sections describe the contents of the receive and transmit buffer descriptors
for the QMC protocol.
The third section discusses the placement of QMC and non-QMC buffer descriptors in
internal and external memory.
5.1 Receive Buffer Descriptor
Figure 5-1 shows a receive buffer descriptor.
Notes: For the 68360, the bit numbering is reversed. See Appendix A for more information.
Entries in boldface must be initialized by the user.
Figure 5-1. Receive Buffer Descriptor (RxBD)
Table 5-1 describes the individual elds of a receive buffer descriptor. Boldfaced entries
must be initialized by the user.
0123456789
10
11
12
13
14
15
OFFSET + 0
E
—
WI
LF
CM
—
UB
—
LG
NO
AB
CR
—
OFFSET + 2
DATA LENGTH
OFFSET + 4
Rx DATA BUFFER POINTER
OFFSET + 6
Table 5-1. Receive Buffer Descriptor (RxBD) Field Descriptions
Field
Name
Description
0
E
Empty
0 The data buffer associated with this buffer descriptor has been lled with received data, or
data reception has been aborted due to an error. The core is free to examine or write to any
eld of this RxBD. The CPM does not use this buffer descriptor again while the empty bit
remains zero.
1 The data buffer associated with this buffer descriptor is empty, or reception is currently in
progress. This RxBD and its associated receive buffer are owned by the CPM. If E = 1, the
CPU core should not write to any eld of this RxBD.
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
..
.
相關(guān)PDF資料
PDF描述
FMC43DRXH-S734 CONN EDGECARD 86POS DIP .100 SLD
FMC36DRYS-S93 CONN EDGECARD 72POS .100 DIP SLD
MC68MH360VR33L IC MPU QUICC 33MHZ 357-PBGA
FMM43DSES-S243 CONN EDGECARD 86POS .156 EYELET
FSM44DSEF-S243 CONN EDGECARD 88POS .156 EYELET
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68MH360ZQ33LR2 功能描述:微處理器 - MPU QUICC 2SMC 1SPI RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
MC68P11E1CFN2R2 制造商:Rochester Electronics LLC 功能描述:8BIT MCU 512RAM A/D EE - Bulk
MC68P11E1CFNE2R 功能描述:8位微控制器 -MCU 8B MCU 512 BYTES RAM 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(fēng)格:SMD/SMT
MC68P-3-2 制造商:PARKER 功能描述:
MC-68PLCC 制造商:SPC Multicomp 功能描述:SOCKET PLCC 68 PIN THRU-HOLE 制造商:SPC Multicomp 功能描述:SOCKET, PLCC, 68 PIN, THRU-HOLE 制造商:PRIVATE LABEL 功能描述:PLCC SOCKET, 68POS, THROUGH HOLE, Connector Type:PLCC Socket, Series:-, No. of C 制造商:SPC Multicomp 功能描述:PLCC SOCKET, 68POS, THROUGH HOLE, Connector Type:PLCC Socket, Series:-, No. of Contacts:68, Pitch Spacing:1.27mm, Contact Termination:Through Hole Vertical, Contact Material:Phosphor Bronze, Contact Plating:Tin , RoHS Compliant: Yes
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*