參數(shù)資料
型號: ATWEBDVK-02WC
廠商: Atmel
文件頁數(shù): 49/137頁
文件大?。?/td> 0K
描述: KIT DEV TCP/IP AT89C51RD2 WEBCAM
標(biāo)準(zhǔn)包裝: 1
系列: @Web
主要目的: *
嵌入式: *
已用 IC / 零件: AT89C51RD2
主要屬性: *
次要屬性: *
已供物品: 板,帶網(wǎng)絡(luò) Webcam 模塊和軟件
產(chǎn)品目錄頁面: 617 (CN2011-ZH PDF)
19
4235K–8051–05/08
AT89C51RD2/ED2
Reset Value = 0000 000’HSB. X2’b (See “Hardware Security Byte”)
Not bit addressable
Table 7-2.
CKCON1 Register
CKCON1 - Clock Control Register (AFh)
5
PCAX2
Programmable Counter Array Clock
(This control bit is validated when the CPU clock X2 is set; when X2 is low, this bit has no
effect).
Cleared to select 6 clock periods per peripheral clock cycle. Set to select 12 clock
periods per peripheral clock cycle.
4
SIX2
Enhanced UART Clock (Mode 0 and 2)
(This control bit is validated when the CPU clock X2 is set; when X2 is low, this bit has no
effect).
Cleared to select 6 clock periods per peripheral clock cycle. Set to select 12 clock
periods per peripheral clock cycle.
3
T2X2
Timer2 Clock
(This control bit is validated when the CPU clock X2 is set; when X2 is low, this bit has no
effect).
Cleared to select 6 clock periods per peripheral clock cycle.
Set to select 12 clock periods per peripheral clock cycle.
2
T1X2
Timer1 Clock
(This control bit is validated when the CPU clock X2 is set; when X2 is low, this bit has no
effect).
Cleared to select 6 clock periods per peripheral clock cycle. Set to select 12 clock
periods per peripheral clock cycle.
1
T0X2
Timer0 Clock
(This control bit is validated when the CPU clock X2 is set; when X2 is low, this bit has no
effect).
Cleared to select 6 clock periods per peripheral clock cycle. Set to select 12 clock
periods per peripheral clock cycle.
0
X2
CPU Clock
Cleared to select 12 clock periods per machine cycle (STD mode) for CPU and all the
peripherals. Set to select 6 clock periods per machine cycle (X2 mode) and to enable the
individual peripherals’X2’ bits. Programmed by hardware after Power-up regarding
Hardware Security Byte (HSB), Default setting, X2 is cleared.
7
6
5
4
3
2
1
0
-
SPIX2
Bit
Number
Bit
Mnemonic
Description
7
-
Reserved
6
-
Reserved
5
-
Reserved
4
-
Reserved
3
-
Reserved
Bit
Number
Bit
Mnemonic
Description
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ATWEBEVK-01 功能描述:KIT EVAL TCP/IP AT89C51AC2 RoHS:否 類別:編程器,開發(fā)系統(tǒng) >> 評估演示板和套件 系列:@Web 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 主要目的:電源管理,電池充電器 嵌入式:否 已用 IC / 零件:MAX8903A 主要屬性:1 芯鋰離子電池 次要屬性:狀態(tài) LED 已供物品:板
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