參數(shù)資料
型號(hào): PSOC
廠商: Cypress Semiconductor Corp.
英文描述: 8-Bit Programmable System-on-Chip (PSoC⑩) Microcontrollers
中文描述: 8位可編程系統(tǒng)(的PSoC⑩)微控制器片上
文件頁數(shù): 40/148頁
文件大?。?/td> 1412K
代理商: PSOC
Cypress MicroSystems CY8C25122/CY8C26233/CY8C26443/CY8C26643 Family Data Sheet
40
Document #: 38-12010 CY Rev. ** CMS Rev. 3.20
September 5, 2002
Oscillator Control 0 Register (OSC_CR0, Address = Bank 1, E0h)
Oscillator Control 1 Register (OSC_CR1, Address = Bank 1, E1h)
Table 40:
Oscillator Control 0 Register
Bit #
POR
Read/
Write
Bit Name
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
RW
RW
RW
RW
RW
RW
RW
RW
32k Select
PLL Mode
Reserved
Sleep [1]
Sleep [0]
CPU [2]
CPU [1]
CPU [0]
Bit 7
:
32k Select
0 = Internal low precision 32 kHz oscillator
1 = External Crystal Oscillator
Bit 6
:
PLL Mode
0 = Disabled
1 = Enabled, Internal Main Oscillator is locked to External Crystal Oscillator
Bit 5
:
Reserved
Bit [4:3]
:
Sleep [1:0]
0 0 = 512 Hz or 1.95 ms period
0 1 = 64 Hz or 15.6 ms period
1 0 = 8 Hz or 125 ms period
1 1 = 1 Hz or 1 s period
Bit [2:0]
:
CPU [2:0]
0 0 0 = 3 MHz
0 0 1 = 6 MHz
0 1 0 = 12 MHz
0 1 1 = 24 MHz
1 0 0 = 1.5 MHz
1 0 1 = 750 kHz
1 1 0 = 187.5 kHz
1 1 1 = 93.7 kHz
Table 41:
Oscillator Control 1 Register
Bit #
POR
Read/
Write
Bit Name
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
RW
RW
RW
RW
RW
RW
RW
RW
24V1 [3]
24V1 [2]
24V1 [1]
24V1 [0]
24V2 [3]
24V2 [2]
24V2 [1]
24V2 [0]
Bit [7:4]
:
24V1 [3:0]
4-bit data value determines the divider value for the
24V1
system-clocking signal. Note that the
4-bit data value equals n-1, where n is the desired divider value, as illustrated in
PSoC MCU Clock Tree of Signals
.
See
Table 42 on page 41
.
Bit [3:0]
:
24V2 [3:0]
4-bit data value determines the divider value for the
24V2
system-clocking signal. Note that the
4-bit data value equals n-1, where n is the desired divider value, as illustrated in the
PSoC MCU Clock Tree of Sig-
nals
. See
Table 42 on page 41
.
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