PBBDIV, PBBSEL: PBB" />
參數(shù)資料
型號: ATTINY84A-SSU
廠商: Atmel
文件頁數(shù): 11/135頁
文件大?。?/td> 0K
描述: IC MCU 8BIT 8K FLASH 14SOIC
標準包裝: 55
系列: AVR® ATtiny
核心處理器: AVR
芯體尺寸: 8-位
速度: 20MHz
連通性: USI
外圍設(shè)備: 欠壓檢測/復(fù)位,POR,PWM,溫度傳感器,WDT
輸入/輸出數(shù): 12
程序存儲器容量: 8KB(4K x 16)
程序存儲器類型: 閃存
EEPROM 大小: 512 x 8
RAM 容量: 512 x 8
電壓 - 電源 (Vcc/Vdd): 1.8 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 14-SOIC(0.154",3.90mm 寬)
包裝: 管件
108
32015G–AVR32–09/09
AT32AP7001
11.6.2
Clock Select
Name:
CKSEL
Access Type:
Read/Write
PBBDIV, PBBSEL: PBB Division and Clock Select
PBBDIV = 0: PBB clock equals main clock.
PBBDIV = 1: PBB clock equals main clock divided by 2(PBBSEL+1).
PBADIV, PBASEL: PBA Division and Clock Select
PBADIV = 0: PBA clock equals main clock.
PBADIV = 1: PBA clock equals main clock divided by 2(PBASEL+1).
HSBDIV, HSBSEL: HSB Division and Clock Select
HSBDIV = 0: HSB clock equals main clock.
HSBDIV = 1: HSB clock equals main clock divided by 2(HSBSEL+1).
CPUDIV, CPUSEL: CPU Division and Clock Select
CPUDIV = 0: CPU clock equals main clock.
CPUDIV = 1: CPUclock equals main clock divided by 2(CPUSEL+1).
Note that if xxxDIV is written to 0, xxxSEL should also be written to 0 to ensure correct operation.
Also note that writing this register clears ISR:CKRDY. The register must not be re-written until CKRDY goes high.
31
30
29
28
27
26
25
24
PBBDIV
-
PBBSEL
23
22
21
20
19
18
17
16
PBADIV
-
PBASEL
15
14
13
12
11
10
9
8
HSBDIV
-
HSBSEL
76
543
21
0
CPUDIV
-
CPUSEL
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