CY7C63823-SXC Cypress Semiconductor Corp, CY7C63823-SXC Datasheet - Page 25

• Manufacturer Part Number: CY7C63823-SXC
• Description: IC USB PERIPHERAL CTRLR 24-SOIC
• Manufacturer: Cypress Semiconductor Corp
• Series: CY7Cr

Specifications of CY7C63823-SXC

• Controller Type: USB Peripheral Controller
• Interface: USB
• Voltage - Supply: 4 V ~ 5.5 V
• Current - Supply: 40mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 24-SOIC (7.5mm Width)
• No. Of I/o's: 20
• Ram Memory Size: 256Byte
• Cpu Speed: 24MHz
• No. Of Timers: 1
• Digital Ic Case Style: SOIC
• Supply Voltage Range: 4V To 5.5V
• Core Size: 8 Bit
• Program Memory Size: 8KB
• Embedded Interface Type: PS/2, USB
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 770-1001 - ISP 4PORT CYPRESS ENCORE II MCUCY4623 - KIT MOUSE REFERENCE DESIGN428-1774 - EXTENSION KIT FOR ENCORE II428-1773 - KIT DEVELOPMENT ENCORE II
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Table 10-5. USB Osclock Clock Configuration (OSCLCKCR) [0x39] [R/W]
Table 10-6. Timer Clock Config (TMRCLKCR) [0x31] [R/W]
Document 38-08035 Rev. *N
This register is used to trim the Internal 24 MHz Oscillator using received low speed USB packets as a timing reference. The
USB Osclock circuit is active when the Internal 24 MHz Oscillator provides the USB clock.
Bit [7:2]: Reserved
Bit 1: Fine Tune Only
0 = Fine and Course tuning
1 = Disable the oscillator lock from performing the coarse-tune portion of its retuning. The oscillator lock must be allowed to
perform a coarse tuning to tune the oscillator for correct USB SIE operation. After the oscillator is properly tuned, this bit is set
to reduce variance in the internal oscillator frequency that would be caused course tuning.
Bit 0: USB Osclock Disable
0 = Enable. With the presence of USB traffic, the Internal 24 MHz Oscillator precisely tunes to 24 MHz ± 1.5%
1 = Disable. The Internal 24 MHz Oscillator is not trimmed based on USB packets. This setting is useful when the internal
oscillator is not sourcing the USBSIE clock.
Bit [7:6]: TCAPCLK Divider [1:0]
TCAPCLK Divider controls the TCAPCLK divisor.
0 0 = Divider Value 2
0 1 = Divider Value 4
1 0 = Divider Value 6
1 1 = Divider Value 8
Bit [5:4]: TCAPCLK Select
The TCAPCLK Select field controls the source of the TCAPCLK.
0 0 = Internal 24 MHz Oscillator
0 1 = External clock—external clock at CLKIN (P0.0) input.
1 0 = Internal 32 kHz low power oscillator
1 1 = TCAPCLK Disabled
Note The 1024 μs interval timer is based on the assumption that TCAPCLK is running at 4 MHz. Changes in TCAPCLK frequency
causes a corresponding change in the 1024 μs interval timer frequency.
Bit [3:2]: ITMRCLK Divider
ITMRCLK Divider controls the ITMRCLK divisor.
0 0 = Divider value of 1
0 1 = Divider value of 2
1 0 = Divider value of 3
1 1 = Divider value of 4
Bit [1:0]: ITMRCLK Select
0 0 = Internal 24 MHz Oscillator
0 1 = External clock—external clock at CLKIN (P0.0) input.
1 0 = Internal 32 kHz low power oscillator
1 1 = TCAPCLK
Read/Write
Read/Write
Default
Default
Field
Field
Bit #
Bit #
R/W
7
–
0
7
1
TCAPCLK Divider
R/W
6
–
0
6
0
R/W
5
–
0
5
0
TCAPCLK Select
Reserved
R/W
4
–
0
4
0
R/W
3
–
0
3
1
ITMRCLK Divider
R/W
CY7C63310, CY7C638xx
2
–
0
2
1
Fine Tune Only
R/W
R/W
1
0
1
1
ITMRCLK Select
USB Osclock
Disable
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R/W
R/W
0
0
0
1
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