CY7C60223-PXC Cypress Semiconductor Corp, CY7C60223-PXC Datasheet - Page 29

• Manufacturer Part Number: CY7C60223-PXC
• Description: IC MCU 8K WIRELESS 24-DIP
• Manufacturer: Cypress Semiconductor Corp
• Series: enCoRe™ II CY7C602xxr

Specifications of CY7C60223-PXC

• Core Processor: M8C
• Core Size: 8-Bit
• Speed: 12MHz
• Connectivity: SPI
• Peripherals: LVD, POR, WDT
• Number Of I /o: 20
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 24-DIP (0.300", 7.62mm)
• For Use With: 770-1001 - ISP 4PORT CYPRESS ENCORE II MCUCY3216 - KIT PROGRAMMER MODULAR428-1774 - EXTENSION KIT FOR ENCORE II428-1773 - KIT DEVELOPMENT ENCORE II
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Other names: 428-1797

Document 38-16016 Rev. *F
12.2.6 LPOSC Trim
Table 12-3. LPOSC Trim (LPOSCTR) [0x36] [R/W]
12.3 CPU Clock During Sleep Mode
When the CPU enters sleep mode the CPUCLK Select (Bit 0,
oscillator is stopped. When the CPU comes out of sleep mode it runs on the internal oscillator. The internal oscillator recovery
time is three clock cycles of the internal 32 kHz low power oscillator.
If the system requires the CPU to run off the external clock after waking from sleep mode, firmware needs to switch the clock
source for the CPU. If the external clock source is the external oscillator and the oscillator is disabled, firmware needs to enable
the external oscillator, wait for it to stabilize, and then change the clock source.
This register is used to calibrate the 32 kHz low speed oscillator. The reset value is undefined but during boot the SROM writes
a calibration value that is determined during manufacturing test. This is the meaning of ‘D’ in the Default field. The trim value is
adjusted vs. voltage as noted in
Bit 7: 32 kHz Low Power
0 = The 32 kHz low speed oscillator operates in normal mode.
1 = The 32 kHz low speed oscillator operates in a low power mode. The oscillator continues to function normally but with reduced
accuracy.
Bit 6: Reserved
Bit [5:4]: 32 kHz Bias Trim [1:0]
These bits control the bias current of the low power oscillator.
0 0 = Mid bias
0 1 = High bias
1 0 = Reserved
1 1 = Reserved
Note Do not program the 32 kHz Bias Trim [1:0] field with the reserved 10b value as the oscillator does not oscillate at all corner
conditions with this setting.
Bit [3:0]: 32 kHz Freq Trim [3:0]
These bits are used to trim the frequency of the low power oscillator.
Read/Write
Default
Field
Bit #
32 kHz Low
Power
R/W
7
0
Reserved
Table 12-2
6
–
–
on page 23.
R/W
32 kHz Bias Trim [1:0]
D
5
R/W
Table 12-2
D
4
on page 23) is forced to the internal oscillator, and the
R/W
D
3
CY7C601xx, CY7C602xx
32 kHz Freq Trim [3:0]
R/W
D
2
R/W
D
1
Page 29 of 68
R/W
D
0
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