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Cypress CY7C67200 manual SPI CRC Value Register 0xC0D4 R/W, SPI Data Register 0xC0D6 R/W

Models: CY7C67200

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SPI CRC Value Register [0xC0D4] [R/W]

CY7C67200

CRC Enable (Bit 13)

The CRC Enable bit enables or disables the CRC operation.

1:Enables CRC operation

0:Disables CRC operation

CRC Clear (Bit 12)

The CRC Clear bit will clear the CRC with a load of all ones. This bit is self clearing and always reads ‘0’.

1:Clear CRC with all ones

0:No Function

Receive CRC (Bit 11)

The Receive CRC bit determines whether the receive bit stream or the transmit bit stream is used for the CRC data input in full duplex mode. This bit is a don’t care in half-duplex mode.

1:Assigns the receive bit stream

0:Assigns the transmit bit stream

SPI CRC Value Register [0xC0D4] [R/W]

One in CRC (Bit 10)

The One in CRC bit is a read-only bit that indicates if the CRC value is all zeros or not.

1:CRC value is not all zeros

0:CRC value is all zeros

Zero in CRC (Bit 9)

The Zero in CRC bit is a read-only bit that indicates if the CRC value is all ones or not.

1:CRC value is not all ones

0:CRC value is all ones

Reserved

All reserved bits must be written as ‘0’.

Figure 67. SPI CRC Value Register

Bit #	15	14	13	12		11	10	9	8
Field					CRC...
Read/Write	R/W	R/W	R/W	R/W		R/W	R/W	R/W	R/W
Default	1	1	1	1		1	1	1	1

Bit #	7	6	5	4		3	2	1	0
Field					...CRC
Read/Write	R/W	R/W	R/W	R/W		R/W	R/W	R/W	R/W
Default	1	1	1	1		1	1	1	1

Register Description

The SPI CRC Value register contains the CRC value.

CRC (Bits [15:0])

The CRC field contains the SPI CRC. In CRC Mode CRC7, the CRC value will be a seven bit value [6:0]. Therefore bits [15:7] are invalid in CRC7 mode.

SPI Data Register [0xC0D6] [R/W]

Figure 68. SPI Data Register

Bit #	15	14	13	12		11	10	9	8
Field					Reserved
Read/Write	-	-	-	-		-	-	-	-
Default	X	X	X	X		X	X	X	X

Bit #	7	6	5	4		3	2	1	0
Field					Data
Read/Write	R/W	R/W	R/W	R/W		R/W	R/W	R/W	R/W
Default	X	X	X	X		X	X	X	X

Register Description

The SPI Data register contains data received on the SPI port when read. Reading it empties the eight byte receive FIFO in PIO byte mode. This receive data is valid when the receive bit of the SPI Interrupt Value is set to ‘1’ (RxIntVal triggers) or the Receive

Document #: 38-08014 Rev. *G

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Cypress CY7C67200 manual SPI CRC Value Register 0xC0D4 R/W, SPI Data Register 0xC0D6 R/W

Contents

Typical Applications EZ-OTG FeaturesCY7C67200 CY7C67200Interface Descriptions IntroductionProcessor Core Functional Overview CY7C67200OTG Features USB FeaturesUSB Pins OTG PinsI2C EEPROM Features UART FeaturesUART Pins I2C EEPROM PinsCY7C67200 HPI FeaturesHPI Pins CY7C67200Booster Pins Charge Pump FeaturesCharge Pump Pins CY7C67200Standalone Mode Crystal PinsCoprocessor Mode CY7C67200Figure 5. Minimum Standalone Hardware Configuration - Peripheral Only Power Savings and Reset DescriptionMinimum Hardware Requirements for Standalone Mode - Peripheral Only Power Savings Mode DescriptionInternal Memory LCP Variables USB Registers Slave Setup Packet BIOS StackMemory Map 0x0000 - 0x00FF 0x0100 - 0x011F 0x0120 - 0x013FCPU Flags Register 0xC000 R RegistersCY7C67200 Hardware Revision Register 0xC004 R Bank Register 0xC002 R/WCY7C67200 CPU Speed Register 0xC008 R/W CY7C67200Power Control Register 0xC00A R/W CY7C67200Interrupt Enable Register 0xC00E R/W CY7C67200Breakpoint Register 0xC014 R/W CY7C67200Pull-down USB Diagnostic Register 0xC03C R/WCY7C67200 Force SelectLock Watchdog Timer Register 0xC00C R/WCY7C67200 StrobeResistors Enable Timer n Register R/WUSB n Control Register R/W CY7C672000xC090/0xC0B0 CY7C67200Pull up/Pull down on D+ and 0xC094/0xC0B4Sequence Host n Control Register R/WCY7C67200 SyncHost n Count Register R/W Host n Address Register R/WCY7C67200 CY7C67200 Host n Endpoint Status Register RLength Host n PID Register W CY7C67200Host n Device Address Register W Host n Count Result Register RCY7C67200 CY7C67200 Host n Interrupt Enable Register R/WPort A Connect CY7C67200 Host n Status Register R/WPort A Connect Host n SOF/EOP Counter Register R Host n SOF/EOP Count Register R/WCY7C67200 Device n Endpoint n Control Register R/W Host n Frame Register RCY7C67200 CY7C67200 Device n Endpoint n Count Register R/W Device n Endpoint n Address Register R/WCY7C67200 Setup Device n Endpoint n Status Register R/WCY7C67200 CY7C67200 Page 32 ofDevice n Endpoint n Count Result Register R/W CY7C67200Interrupt Enable Device n Interrupt Enable Register R/WCY7C67200 CY7C67200 Page 35 ofDevice n Status Register R/W Device n Address Register WCY7C67200 CY7C67200 Page 37 ofDevice n SOF/EOP Count Register W Device n Frame Number Register RCY7C67200 CY7C67200 OTG Control Register 0xC098 R/WC098H GPIO Control Register 0xC006 R/W CY7C67200GPIO 1 Output Data Register 0xC024 R/W GPIO 0 Output Data Register 0xC01E R/WCY7C67200 GPIO 0 Direction Register 0xC022 R/W GPIO 0 Input Data Register 0xC020 RGPIO 1 Input Data Register 0xC026 R CY7C67200GPIO 1 Direction Register 0xC028 R/W CY7C67200HSS Control Register 0xC070 R/W CY7C67200HSS Baud Rate Register 0xC072 R/W CY7C67200HSS Data Register 0xC076 R/W HSS Transmit Gap Register 0xC074 R/WCY7C67200 HSS Receive Counter Register 0xC07A R/W HSS Receive Address Register 0xC078 R/WCY7C67200 HSS Transmit Counter Register 0xC07E R/W HSS Transmit Address Register 0xC07C R/WCY7C67200 Interrupt Routing Register 0x0142 R HPI Breakpoint Register 0x0140 RCY7C67200 SOF/EOP2 to CPU Enable Bit CY7C67200HPI Mailbox Register 0xC0C6 R/W SIEXmsg Register WCY7C67200 HPI Status Port HPI R CY7C67200SPI Configuration Register 0xC0C8 R/W CY7C672003Wire Enable Bit CY7C67200Strobe SPI Control Register 0xC0CA R/WCY7C67200 Receive Bit LengthSPI Status Register 0xC0CE R SPI Interrupt Enable Register 0xC0CC R/WCY7C67200 SPI CRC Control Register 0xC0D2 R/W SPI Interrupt Clear Register 0xC0D0 WCY7C67200 SPI Data Register 0xC0D6 R/W SPI CRC Value Register 0xC0D4 R/WCY7C67200 SPI Transmit Count Register 0xC0DA R/W SPI Transmit Address Register 0xC0D8 R/WCY7C67200 SPI Receive Count Register 0xC0DE R/W SPI Receive Address Register 0xC0DC R/WCY7C67200 UART Status Register 0xC0E2 R UART Control Register 0xC0E0 R/WCY7C67200 UART Data Register 0xC0E4 R/W CY7C67200Pin Descriptions Pin DiagramCY7C67200 Name CY7C67200Table 38.Pin Descriptions continued TypeCrystal Requirements XTALIN, XTALOUT Absolute Maximum RatingsOperating Conditions CY7C67200DC Characteristics CY7C67200nRESET nRD or nWRL or nWRH AC Timing CharacteristicsReset Timing CY7C67200XTALIN Clock Timing1. I2C EEPROM Bus Timing - Serial I/O CY7C67200tASU tCSSU ADDR nCS nWR nRD DoutCY7C67200 tCYCADDR CY7C67200HSS Block Mode Transmit CY7C67200HSS BYTE Mode Transmit HSS BYTE and BLOCK Mode ReceiveHardware CTS/RTS Handshake CY7C67200Page 72 of Default Low Register SummaryDefault High CY7C67200CY7C67200 Default HighDefault Low + FeedbackCY7C67200 Default HighDefault Low + FeedbackCY7C67200 Default HighDefault Low + FeedbackCY7C67200 Package DiagramOrdering Information Table 43.Ordering InformationCY7C67200 Document History Page“Interrupt Enable Register 0xC00E R/W” Mode”