参数资料
型号: ATWEBDVK-02WC
厂商: Atmel
文件页数: 107/137页
文件大小: 0K
描述: KIT DEV TCP/IP AT89C51RD2 WEBCAM
标准包装: 1
系列: @Web
主要目的: *
嵌入式: *
已用 IC / 零件: AT89C51RD2
主要属性: *
次要属性: *
已供物品: 板,带网络 Webcam 模块和软件
产品目录页面: 617 (CN2011-ZH PDF)
71
4235K–8051–05/08
AT89C51RD2/ED2
Reset Value = 00X0 XXXXb
Not Bit addressable
16.3.5.3
Serial Peripheral DATa Register (SPDAT)
The Serial Peripheral Data Register (Table 16-5) is a read/write buffer for the receive data regis-
ter. A write to SPDAT places data directly into the shift register. No transmit buffer is available in
this model.
A Read of the SPDAT returns the value located in the receive buffer and not the content of the
shift register.
Table 16-5.
SPDAT Register
SPDAT - Serial Peripheral Data Register (0C5H)
Reset Value = Indeterminate
R7:R0: Receive data bits
SPCON, SPSTA and SPDAT registers may be read and written at any time while there is no on-
going exchange. However, special care should be taken when writing to them while a transmis-
sion is on-going:
Do not change SPR2, SPR1 and SPR0
Do not change CPHA and CPOL
Do not change MSTR
Clearing SPEN would immediately disable the peripheral
Writing to the SPDAT will cause an overflow.
5
SSERR
Synchronous Serial Slave Error Flag
Set by hardware when SS is de-asserted before the end of a received data.
Cleared by disabling the SPI (clearing SPEN bit in SPCON).
4
MODF
Mode Fault
Cleared by hardware to indicate that the SS pin is at appropriate logic level, or has been
approved by a clearing sequence.
Set by hardware to indicate that the SS pin is at inappropriate logic level.
3
-
Reserved
The value read from this bit is indeterminate. Do not set this bit
2
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
1
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
0
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Bit Number
Bit
Mnemonic
Description
7
6
5
4
3
2
1
0
R7
R6
R5
R4
R3
R2
R1
R0
相关PDF资料
PDF描述
VRE210MA IC VREF SERIES PREC 10V 20-CLCC
VRE204M IC VREF SERIES PREC 4.5V 20-CLCC
ATWEBDVK-02VOIP KIT DEV TCP/IP AT89C51RD2 VOIP
A3DDB-1018G IDC CABLE- AKR10B/AE10G/AKR10B
V24C12E150BL3 CONVERTER MOD DC/DC 12V 150W
相关代理商/技术参数
参数描述
ATWEBEVK-01 功能描述:KIT EVAL TCP/IP AT89C51AC2 RoHS:否 类别:编程器,开发系统 >> 评估演示板和套件 系列:@Web 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 主要目的:电源管理,电池充电器 嵌入式:否 已用 IC / 零件:MAX8903A 主要属性:1 芯锂离子电池 次要属性:状态 LED 已供物品:板
ATWEBEVK-02 功能描述:KIT SOFTWARE EVAL FOR T89C51CC01 制造商:microchip technology 系列:- 零件状态:停產 主要用途:接口,以太网 嵌入式:- 使用的 IC/零件:- 主要属性:- 辅助属性:- 所含物品:板 标准包装:1
ATWEBEVK-05 功能描述:KIT EVAL MODULE RS232 TO TCP/IP RoHS:否 类别:编程器,开发系统 >> 评估演示板和套件 系列:@Web 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 主要目的:电源管理,电池充电器 嵌入式:否 已用 IC / 零件:MAX8903A 主要属性:1 芯锂离子电池 次要属性:状态 LED 已供物品:板
ATWEBEVK-06 功能描述:BOARD EVAL FOR CAN-ETHERNET MOD RoHS:否 类别:编程器,开发系统 >> 评估演示板和套件 系列:@Web 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 主要目的:电源管理,电池充电器 嵌入式:否 已用 IC / 零件:MAX8903A 主要属性:1 芯锂离子电池 次要属性:状态 LED 已供物品:板
ATWEBSEG-32 功能描述:MODULE RS232 TO TCP/IP RoHS:否 类别:编程器,开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK(80-QFP ZIF 插口) 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035